CVE-2021-34739: Cisco Small Business Series Switches Session Credentials Replay Vulnerability
First published: Thu Nov 04 2021(Updated: )
A vulnerability in the web-based management interface of multiple Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to replay valid user session credentials and gain unauthorized access to the web-based management interface of an affected device. This vulnerability is due to insufficient expiration of session credentials. An attacker could exploit this vulnerability by conducting a man-in-the-middle attack against an affected device to intercept valid session credentials and then replaying the intercepted credentials toward the same device at a later time. A successful exploit could allow the attacker to access the web-based management interface with administrator privileges.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco SF250-24 Firmware | <=2.5 | |
| Cisco SF250-24 Firmware | ||
| Cisco SF250-24P Firmware | <=2.5 | |
| Cisco SF250-24P Firmware | ||
| Cisco SF250-48 | <=2.5 | |
| Cisco SF250-48HP Firmware | ||
| Cisco SF250-48HP Firmware | <=2.5 | |
| Cisco SF250-48HP Firmware | ||
| Cisco SF250-08 Firmware | <=2.5 | |
| Cisco SF250-08 Firmware | ||
| Cisco SF250-08HP | <=2.5 | |
| Cisco SF250-08HP Firmware | ||
| Cisco SF250-10P | <=2.5 | |
| Cisco SF250-10P Firmware | ||
| Cisco SF250-18 Firmware | <=2.5 | |
| Cisco SF250-18 Firmware | ||
| Cisco SF250-26 Firmware | <=2.5 | |
| Cisco SF250-26P | ||
| Cisco SF250-26HP Firmware | <=2.5 | |
| Cisco SF250-26HP Firmware | ||
| Cisco SF250-26P Firmware | <=2.5 | |
| Cisco SF250-26P Firmware | ||
| Cisco SF250-50P Firmware | <=2.5 | |
| Cisco SF250-50P Firmware | ||
| Cisco SF250-50HP Firmware | <=2.5 | |
| Cisco SF250-50HP Firmware | ||
| Cisco SF250-50P Firmware | <=2.5 | |
| Cisco SF250-50P Firmware | ||
| Cisco SF250X-24 Firmware | <=2.5 | |
| Cisco SF250X-24 Firmware | ||
| Cisco SF250X-24P Firmware | <=2.5 | |
| Cisco SF250X-24P Firmware | ||
| Cisco SF250X-48 Firmware | <=2.5 | |
| Cisco SF250X-48 Firmware | ||
| Cisco SF250 Series | <=2.5 | |
| Cisco SF250X-48P Firmware | ||
| Cisco SF350-08 Firmware | <=2.5 | |
| Cisco SF350-08 Firmware | ||
| Cisco SF350-24 Firmware | <=2.5 | |
| Cisco SF350-24 Firmware | ||
| Cisco SF350-24MP Firmware | <=2.5 | |
| Cisco SF350-24MP Firmware | ||
| Cisco SF350-24P Firmware | <=2.5 | |
| Cisco SF350-24P Firmware | ||
| Cisco SF350-48 Firmware | <=2.5 | |
| Cisco SF350-48 Firmware | ||
| Cisco SF350-8MP Firmware | <=2.5 | |
| Cisco SF350-8MP Firmware | ||
| Cisco SF350-48P Firmware | <=2.5 | |
| Cisco SF350-48P Firmware | ||
| Cisco SF352-08P Firmware | <=2.5 | |
| Cisco SF352-08P | ||
| Cisco SF352-08P | <=2.5 | |
| Cisco SF352-08MP Firmware | ||
| Cisco SF352-08P Firmware | <=2.5 | |
| Cisco SF352-08P Firmware | ||
| Cisco SF350-8PD Firmware | <=2.5 | |
| Cisco SF350-8PD Firmware | ||
| Cisco SF350-10 | <=2.5 | |
| Cisco SF350-10P Firmware | ||
| Cisco SG350-10MP Firmware | <=2.5 | |
| Cisco SF350-10MP Firmware | ||
| Cisco SF350-10P Firmware | <=2.5 | |
| Cisco SF350-10 | ||
| Cisco SF350-10SFP Firmware | <=2.5 | |
| Cisco SF350-10 | ||
| Cisco SF350-20 Firmware | <=2.5 | |
| Cisco SF350-20 Firmware | ||
| Cisco SF350-28P Firmware | <=2.5 | |
| Cisco SF350-28SFP | ||
| Cisco SF350-28MP Firmware | <=2.5 | |
| Cisco SF350-28MP Firmware | ||
| Cisco SF350-28P Firmware | <=2.5 | |
| Cisco SF350-28P Firmware | ||
| Cisco SF350-28SFP | <=2.5 | |
| Cisco SF350-28 SFP Firmware | ||
| Cisco SF350-52 Firmware | <=2.5 | |
| Cisco SG350-52 | ||
| Cisco SF350-52MP Firmware | <=2.5 | |
| Cisco SF350-52MP | ||
| Cisco SF350-52P Firmware | <=2.5 | |
| Cisco SF350-52P Firmware | ||
| Cisco SF355-10P | <=2.5 | |
| Cisco SG355-10P | ||
| Cisco SG350X-8PMD Firmware | <=2.5 | |
| Cisco SG350X-8PMD Firmware | ||
| Cisco SG350X-12PMV Firmware | <=2.5 | |
| Cisco SG350X-12PMV Firmware | ||
| Cisco SG350X-24P Firmware | <=2.5 | |
| Cisco SG350X-24 Firmware | ||
| Cisco SG350X-24 Firmware | <=2.5 | |
| Cisco SG350X-24 Firmware | ||
| Cisco SG350X-24MP | <=2.5 | |
| Cisco SG350X-24MP Firmware | ||
| Cisco SG350X-24 Firmware | <=2.5 | |
| Cisco SG350X-24PD Firmware | ||
| Cisco SG350X-24 Firmware | <=2.5 | |
| Cisco SG350X-24PV Firmware | ||
| Cisco SG350X-48 Firmware | <=2.5 | |
| Cisco SG350X-48 Firmware | ||
| Cisco SG350X-48P Firmware | <=2.5 | |
| Cisco SG350X-48P Firmware | ||
| Cisco SG350X-48MP | <=2.5 | |
| Cisco SG350X-48MP Firmware | ||
| Cisco SG350X-48PV | <=2.5 | |
| Cisco SG350X-48PV | ||
| Cisco SG350XG-2F10 | <=2.5 | |
| Cisco SG350XG-2F10 Firmware | ||
| Cisco SG350XG-24F Firmware | <=2.5 | |
| Cisco SG350XG-24F Firmware | ||
| Cisco SG350XG-24F Firmware | <=2.5 | |
| Cisco SG350XG-24F Firmware | ||
| Cisco SG350XG-48T Firmware | <=2.5 | |
| Cisco SG350XG-48T Firmware | ||
| Cisco SX350X Firmware | <=2.5 | |
| Cisco SX350X-08 Firmware | ||
| Cisco SX350X-12 | <=2.5 | |
| Cisco SX350X-12 Firmware | ||
| Cisco SX350X-24 Firmware | <=2.5 | |
| Cisco SX350X-24 Firmware | ||
| Cisco SX350X-24 Firmware | <=2.5 | |
| Cisco SX350X-24 Firmware | ||
| Cisco SX350X-52 | <=2.5 | |
| Cisco SX350X-52 Firmware | ||
| Cisco SF550X-24P | <=2.5 | |
| Cisco SF550X-24 Firmware | ||
| Cisco SF550X-24P | <=2.5 | |
| Cisco SF550X-24P Firmware | ||
| Cisco SF550X-24MP Firmware | <=2.5 | |
| Cisco SF550X-24MP Firmware | ||
| Cisco SF550X-48 | <=2.5 | |
| Cisco SF550X-48 Firmware | ||
| Cisco SF550X-48P Firmware | <=2.5 | |
| Cisco SG550X-48P | ||
| Cisco SG550X-48MP Firmware | <=2.5 | |
| Cisco SF550X-48MP Firmware | ||
| Cisco SG550X-24P Firmware | <=2.5 | |
| Cisco SG550X-24 Firmware | ||
| Cisco SG550X-24P Firmware | <=2.5 | |
| Cisco SG550X-24P Firmware | ||
| Cisco SG550X-24MP Firmware | <=2.5 | |
| Cisco SG550X-24MP Firmware | ||
| Cisco SG550X-24MPP Firmware | <=2.5 | |
| Cisco SG550X-24MPP Firmware | ||
| Cisco SG550X-48MP Firmware | <=2.5 | |
| Cisco SG550X-48 Firmware | ||
| Cisco SG550X-48P Firmware | <=2.5 | |
| Cisco SG550X-48P Firmware | ||
| Cisco SG550X-48MP Firmware | <=2.5 | |
| Cisco SG550X-48MP Firmware | ||
| Cisco SG500XG-8F8T Firmware | <=2.5 | |
| Cisco SG550XG-8F8T firmware | ||
| Cisco SG550XG-24F Firmware | <=2.5 | |
| Cisco SG550XG-24F Firmware | ||
| Cisco SG550XG-24T | <=2.5 | |
| Cisco SG550XG-24T | ||
| Cisco SG550XG-48T Firmware | <=2.5 | |
| Cisco SG550XG-48T Firmware | ||
| Cisco SX550X-12F Firmware | <=2.5 | |
| Cisco SX550X-12F Firmware | ||
| Cisco SX550X Firmware | <=2.5 | |
| Cisco SX550X-16FT Firmware | ||
| Cisco SX550X Firmware | <=2.5 | |
| Cisco SX550X-24FT Firmware | ||
| Cisco SX550X Firmware | <=2.5 | |
| Cisco SX550X-24F Firmware | ||
| Cisco SX550X Firmware | <=2.5 | |
| Cisco SX550X-24F Firmware | ||
| Cisco SX550X-52 | <=2.5 | |
| Cisco SX550X-52 | ||
| Cisco CBS250-8T-D Firmware | <=3.1 | |
| Cisco CBS250-8T-D Firmware | ||
| Cisco CBS250-8PP-D | <=3.1 | |
| Cisco CBS250 Series Switches | ||
| Cisco Business 250-8T-E-2G Firmware | <=3.1 | |
| Cisco CBS250-8T-E-2G Firmware | ||
| Cisco CBS250-8PP-E-2G | <=3.1 | |
| Cisco CBS250-8PP-E-2G Firmware | ||
| Cisco CBS250-8PP-E-2G Firmware | <=3.1 | |
| Cisco CBS250-8P-E-2G | ||
| Cisco CBS250-8FP-E-2G Firmware | <=3.1 | |
| Cisco cbs250-8fp-e-2g firmware | ||
| Cisco Business 250-16T-2G Firmware | <=3.1 | |
| Cisco CBS250-16T-2G Firmware | ||
| Cisco CBS250-16P-2G Firmware | <=3.1 | |
| Cisco CBS250-16P-2G Firmware | ||
| Cisco CBS250-24T-4G Firmware | <=3.1 | |
| Cisco CBS250-24T-4G Firmware | ||
| Cisco CBS250-24PP-4G Firmware | <=3.1 | |
| Cisco CBS250-24PP-4G Firmware | ||
| Cisco CBS250-24P-4G Firmware | <=3.1 | |
| Cisco CBS250-24P-4G Firmware | ||
| Cisco CBS250-24FP-4G Firmware | <=3.1 | |
| Cisco CBS250-24FP-4G Firmware | ||
| Cisco CBS250-48T-4G | <=3.1 | |
| Cisco CBS250-48T-4G Firmware | ||
| Cisco CBS250-48P-4G | <=3.1 | |
| Cisco CBS250-48PP-4G | ||
| Cisco CBS250-48P-4G | <=3.1 | |
| Cisco CBS250-48P-4G Firmware | ||
| Cisco CBS250-24T-4X Firmware | <=3.1 | |
| Cisco CBS250-24T-4X Firmware | ||
| Cisco CBS250-24P-4X | <=3.1 | |
| Cisco CBS250-24P-4X Firmware | ||
| Cisco CBS250-24FP-4X | <=3.1 | |
| Cisco CBS250-24FP-4X Firmware | ||
| Cisco CBS250-48T-4X Firmware | <=3.1 | |
| Cisco CBS250-48T-4X Firmware | ||
| Cisco CBS250-48P-4X | <=3.1 | |
| Cisco CBS250-48P-4X Firmware | ||
| Cisco CBS350-8T-E-2G | <=3.1 | |
| Cisco CBS350-8T-E-2G Firmware | ||
| Cisco CBS350-8P-2G | <=3.1 | |
| Cisco CBS350-8P-2G Firmware | ||
| Cisco CBS350-8P-E-2G Firmware | <=3.1 | |
| Cisco CBS350-8P-E-2G firmware | ||
| Cisco CBS350-8P-E-2G Firmware | <=3.1 | |
| Cisco CBS350-8FP-2G Firmware | ||
| Cisco CBS350-8FP-E-2G | <=3.1 | |
| Cisco Business 350-8FP-E-2G | ||
| Cisco CBS350-8S-E-2G | <=3.1 | |
| Cisco CBS350-8S-E-2G Firmware | ||
| Cisco CBS350-16T-2G | <=3.1 | |
| Cisco CBS350-16T-2G Firmware | ||
| Cisco CBS350-16T-E-2G | <=3.1 | |
| Cisco CBS350-16T-E-2G | ||
| Cisco CBS350-16P-2G | <=3.1 | |
| Cisco CBS350-16P-2G | ||
| Cisco CBS350-16P-E-2G Firmware | <=3.1 | |
| Cisco CBS350-16P-E-2G Firmware | ||
| Cisco CBS350-16FP-2G | <=3.1 | |
| Cisco CBS350-16FP-2G Firmware | ||
| Cisco CBS350-24T-4G Firmware | <=3.1 | |
| Cisco CBS350-24T-4G Firmware | ||
| Cisco CBS350-24P-4G Firmware | <=3.1 | |
| Cisco CBS350-24P-4G Firmware | ||
| Cisco CBS350-24FP-4G | <=3.1 | |
| Cisco CBS350-24FP-4G Firmware | ||
| Cisco CBS350-24S-4G | <=3.1 | |
| Cisco CBS350-24S-4G Firmware | ||
| Cisco CBS350-48T-4G Firmware | <=3.1 | |
| Cisco CBS350-48T-4G | ||
| Cisco CBS350-48P-4G | <=3.1 | |
| Cisco CBS350-48P-4G Firmware | ||
| Cisco CBS350-48FP-4G | <=3.1 | |
| Cisco CBS350-48FP-4G Firmware | ||
| Cisco CBS350-24T-4X | <=3.1 | |
| Cisco CBS350-24T-4X Firmware | ||
| Cisco CBS350-24P-4X Firmware | <=3.1 | |
| Cisco CBS350-24P-4X Firmware | ||
| Cisco CBS350-24FP-4X | <=3.1 | |
| Cisco CBS350-24FP-4X Firmware | ||
| Cisco CBS350-48T-4X Firmware | <=3.1 | |
| Cisco CBS350-48T-4X Firmware | ||
| Cisco CBS350-48P-4X Firmware | <=3.1 | |
| Cisco CBS350-48FP-4X | ||
| Cisco CBS350-48FP-4X | <=3.1 | |
| Cisco CBS350-48FP-4X | ||
| Cisco CBS350-8MG-2X Firmware | <=3.1 | |
| Cisco CBS350-8MG-2X Firmware | ||
| Cisco CBS350-8MP-2X | <=3.1 | |
| Cisco CBS350-8MP-2X Firmware | ||
| Cisco CBS350-24MGPA-4X Firmware | <=3.1 | |
| Cisco CBS350-24MG-4X | ||
| Cisco CBS350-12NP-4X | <=3.1 | |
| Cisco CBS350-12NP-4X Firmware | ||
| Cisco CBS350-24NGP-4X Firmware | <=3.1 | |
| Cisco CBS350-24NGP-4X Firmware | ||
| Cisco CBS350-48NGP-4X Firmware | <=3.1 | |
| Cisco CBS350-48NGP-4X Firmware | ||
| Cisco CBS350-8XT Firmware | <=3.1 | |
| Cisco CBS350-8XT Firmware | ||
| Cisco CBS350-12XS | <=3.1 | |
| Cisco CBS350 | ||
| Cisco CBS350-12XT | <=3.1 | |
| Cisco CBS350-12XT Firmware | ||
| Cisco CBS350-16XTS Firmware | <=3.1 | |
| Cisco CBS350-16XT | ||
| Cisco CBS350-24XS Firmware | <=3.1 | |
| Cisco CBS350-24XS | ||
| Cisco CBS350-24XT Firmware | <=3.1 | |
| Cisco CBS350-24XT Firmware | ||
| Cisco CBS350-24XT | <=3.1 | |
| Cisco CBS350-24XT | ||
| Cisco CBS350-48XT-4X Firmware | <=3.1 | |
| Cisco CBS350-48XT-4X Firmware | ||
| Cisco 250/350/350X/550X/ESW2 Series Switches Firmware | <=2.5 | |
| Cisco Business 350 Series | ||
| Cisco ESW2-350G-52DC | <=2.5 | |
| Cisco ESW2-350G-52DC Firmware | ||
| Cisco 250/350/350X/550X/ESW2 Series Switches Firmware | <=2.5 | |
| Cisco ESW2-550X-48 Firmware | ||
| Cisco 250/350/350X/550X/ESW2 Series Switches Firmware | <=2.5 | |
| Cisco ESW2-550X-48DC Firmware | ||
| Cisco SF200-24 Firmware | ||
| Cisco SF200-24P | ||
| Cisco SF200-24P Firmware | ||
| Cisco SF200-24P Firmware | ||
| Cisco SF200-24FP Firmware | ||
| Cisco SF200-24FP Firmware | ||
| Cisco SF200-48 Firmware | ||
| Cisco SF200-48 Firmware | ||
| Cisco SF200-48P Firmware | ||
| Cisco SF200-48P Firmware | ||
| Cisco SG200-08 | ||
| Cisco SG200-08 Firmware | ||
| Cisco SG200-08P Firmware | ||
| Cisco SG200-08P Firmware | ||
| Cisco SG200-10FP Firmware | ||
| Cisco SG200-10FP Firmware | ||
| Cisco SG200-18 Firmware | ||
| Cisco SG200-18 Firmware | ||
| Cisco SG200-26P Firmware | ||
| Cisco SG200-26P Firmware | ||
| Cisco SG200-26 Firmware | ||
| Cisco SG200-26P Firmware | ||
| Cisco SG200-26FP Firmware | ||
| Cisco SG200-26FP Firmware | ||
| Cisco SG200-50P Firmware | ||
| Cisco SG200-50FP | ||
| Cisco SG200-50P Firmware | ||
| Cisco SG200-50P Firmware | ||
| Cisco SG200-50 Firmware | ||
| Cisco SG200-50 Firmware | ||
| Cisco SF300-08 Firmware | =1.4.11.02 | |
| Cisco SF300-08 Firmware | ||
| Cisco SF302-08 Firmware | =1.4.11.02 | |
| Cisco SF302-08 Firmware | ||
| Cisco SF302-08P | =1.4.11.02 | |
| Cisco SF302-08 | ||
| Cisco SF302-08 | =1.4.11.02 | |
| Cisco SF302-08 | ||
| Cisco SF302-08 | =1.4.11.02 | |
| Cisco SF302-08 | ||
| Cisco SF302-08 | =1.4.11.02 | |
| Cisco SF302-08 | ||
| Cisco SF300-24P Firmware | =1.4.11.02 | |
| Cisco SF300-24 Firmware | ||
| Cisco SF300-24P | =1.4.11.02 | |
| Cisco SF300-24 Firmware | ||
| Cisco SF300-24P | =1.4.11.02 | |
| Cisco SF300-24PP Firmware | ||
| Cisco SF300-24MP Firmware | =1.4.11.02 | |
| Cisco SF300-24MP Firmware | ||
| Cisco SF300-48P Firmware | =1.4.11.02 | |
| Cisco SF300-48P | ||
| Cisco SF300-48P Firmware | =1.4.11.02 | |
| Cisco SF300-48P Firmware | ||
| Cisco SF300-48PP Firmware | =1.4.11.02 | |
| Cisco SF300-48PP Firmware | ||
| Cisco SG300 Series Firmware | =1.4.11.02 | |
| Cisco SG300-10 Firmware | ||
| Cisco SG300 Series Firmware | =1.4.11.02 | |
| Cisco SG300-10SFP Firmware | ||
| Cisco SG300-10P Firmware | =1.4.11.02 | |
| Cisco SG300-10P Firmware | ||
| Cisco SG300-10PP | =1.4.11.02 | |
| Cisco SG300-10 Firmware | ||
| Cisco SG300-10MP Firmware | =1.4.11.02 | |
| Cisco SG300-10MP Firmware | ||
| Cisco SG300-10MPP Firmware | =1.4.11.02 | |
| Cisco SG300-10MPP Firmware | ||
| Cisco SG300 Series Firmware | =1.4.11.02 | |
| Cisco SG300-20 Firmware | ||
| Cisco SG300-28P | =1.4.11.02 | |
| Cisco SG300-28 Firmware | ||
| Cisco SG300-28P Firmware | =1.4.11.02 | |
| Cisco SG300-28P | ||
| Cisco SG300-28PP Firmware | =1.4.11.02 | |
| Cisco SG300-28PP Firmware | ||
| Cisco SG300-28MP | =1.4.11.02 | |
| Cisco SG300-28MP | ||
| Cisco SG300 Series Firmware | =1.4.11.02 | |
| Cisco SG300-52P | ||
| Cisco SG300-52P Firmware | =1.4.11.02 | |
| Cisco SG300-52P Firmware | ||
| Cisco SG300-52MP Firmware | =1.4.11.02 | |
| Cisco SG300-52MP Firmware | ||
| Cisco SG300 Series Firmware | =1.4.11.02 | |
| Cisco SG300-28SFP Firmware | ||
| Cisco SF500-24 | >=2.5.5.0<2.5.8.12 | |
| Cisco SF500-24MP | ||
| Cisco SF500-24P | >=2.5.5.0<2.5.8.12 | |
| Cisco SF500-24P Firmware | ||
| Cisco 500 Series Switch Firmware | >=2.5.5.0<2.5.8.12 | |
| Cisco SF500-24MP Firmware | ||
| Cisco SF500-48P Firmware | >=2.5.5.0<2.5.8.12 | |
| Cisco SF500-48 Firmware | ||
| Cisco 500 Series Switch Firmware | >=2.5.5.0<2.5.8.12 | |
| Cisco SF500-48 Firmware | ||
| Cisco 500 Series Switch Firmware | >=2.5.5.0<2.5.8.12 | |
| Cisco SF500-48MP Firmware | ||
| Cisco SG500-28 | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500-28PP Firmware | ||
| Cisco SG500-28P | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500-28P | ||
| Cisco SG500-28PP Firmware | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500-28MPP Firmware | ||
| Cisco SG500-52P | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500-52 Firmware | ||
| Cisco SG500-52P | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500-52P | ||
| Cisco SG500-52MP | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500-52 | ||
| Cisco SG500X-24 | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500X-24P | ||
| Cisco SG500X-24P | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500X-24P | ||
| Cisco SG500X-24MPP | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500X-24MPP Firmware | ||
| Cisco SG500X-48 | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500X-48MP Firmware | ||
| Cisco SG500X-48P | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500X-48P | ||
| Cisco SG500X-48MP Firmware | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500X-48 | ||
| Cisco SG500XG-8F8T | >=2.5.5.0<2.5.8.12 | |
| Cisco SG500XG-8F8T Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-34739?
The severity of CVE-2021-34739 is rated as high due to its potential for unauthorized access to network devices.
How do I fix CVE-2021-34739?
To fix CVE-2021-34739, upgrade the affected Cisco Small Business Switches to the latest firmware that addresses the vulnerability.
Which devices are affected by CVE-2021-34739?
CVE-2021-34739 affects multiple Cisco Small Business Series Switches, including SF250, SF350, and others with firmware versions up to 2.5.
Is there a workaround for CVE-2021-34739?
There are no specific workarounds for CVE-2021-34739; however, disabling remote management access can help mitigate the risk.
When was CVE-2021-34739 disclosed?
CVE-2021-34739 was disclosed in July 2021 as part of Cisco's security advisories.
- agent/type
- agent/references
- agent/title
- agent/weakness
- agent/author
- agent/severity
- agent/description
- agent/first-publish-date
- agent/event
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/cisco
- canonical/cisco sf250-24 firmware
- version/cisco sf250-24 firmware/2.5
- canonical/cisco sf250-24p firmware
- version/cisco sf250-24p firmware/2.5
- canonical/cisco sf250-48
- version/cisco sf250-48/2.5
- canonical/cisco sf250-48hp firmware
- version/cisco sf250-48hp firmware/2.5
- canonical/cisco sf250-08 firmware
- version/cisco sf250-08 firmware/2.5
- canonical/cisco sf250-08hp
- version/cisco sf250-08hp/2.5
- canonical/cisco sf250-08hp firmware
- canonical/cisco sf250-10p
- version/cisco sf250-10p/2.5
- canonical/cisco sf250-10p firmware
- canonical/cisco sf250-18 firmware
- version/cisco sf250-18 firmware/2.5
- canonical/cisco sf250-26 firmware
- version/cisco sf250-26 firmware/2.5
- canonical/cisco sf250-26p
- canonical/cisco sf250-26hp firmware
- version/cisco sf250-26hp firmware/2.5
- canonical/cisco sf250-26p firmware
- version/cisco sf250-26p firmware/2.5
- canonical/cisco sf250-50p firmware
- version/cisco sf250-50p firmware/2.5
- canonical/cisco sf250-50hp firmware
- version/cisco sf250-50hp firmware/2.5
- canonical/cisco sf250x-24 firmware
- version/cisco sf250x-24 firmware/2.5
- canonical/cisco sf250x-24p firmware
- version/cisco sf250x-24p firmware/2.5
- canonical/cisco sf250x-48 firmware
- version/cisco sf250x-48 firmware/2.5
- canonical/cisco sf250 series
- version/cisco sf250 series/2.5
- canonical/cisco sf250x-48p firmware
- canonical/cisco sf350-08 firmware
- version/cisco sf350-08 firmware/2.5
- canonical/cisco sf350-24 firmware
- version/cisco sf350-24 firmware/2.5
- canonical/cisco sf350-24mp firmware
- version/cisco sf350-24mp firmware/2.5
- canonical/cisco sf350-24p firmware
- version/cisco sf350-24p firmware/2.5
- canonical/cisco sf350-48 firmware
- version/cisco sf350-48 firmware/2.5
- canonical/cisco sf350-8mp firmware
- version/cisco sf350-8mp firmware/2.5
- canonical/cisco sf350-48p firmware
- version/cisco sf350-48p firmware/2.5
- canonical/cisco sf352-08p firmware
- version/cisco sf352-08p firmware/2.5
- canonical/cisco sf352-08p
- version/cisco sf352-08p/2.5
- canonical/cisco sf352-08mp firmware
- canonical/cisco sf350-8pd firmware
- version/cisco sf350-8pd firmware/2.5
- canonical/cisco sf350-10
- version/cisco sf350-10/2.5
- canonical/cisco sf350-10p firmware
- canonical/cisco sg350-10mp firmware
- version/cisco sg350-10mp firmware/2.5
- canonical/cisco sf350-10mp firmware
- version/cisco sf350-10p firmware/2.5
- canonical/cisco sf350-10sfp firmware
- version/cisco sf350-10sfp firmware/2.5
- canonical/cisco sf350-20 firmware
- version/cisco sf350-20 firmware/2.5
- canonical/cisco sf350-28p firmware
- version/cisco sf350-28p firmware/2.5
- canonical/cisco sf350-28sfp
- canonical/cisco sf350-28mp firmware
- version/cisco sf350-28mp firmware/2.5
- version/cisco sf350-28sfp/2.5
- canonical/cisco sf350-28 sfp firmware
- canonical/cisco sf350-52 firmware
- version/cisco sf350-52 firmware/2.5
- canonical/cisco sg350-52
- canonical/cisco sf350-52mp firmware
- version/cisco sf350-52mp firmware/2.5
- canonical/cisco sf350-52mp
- canonical/cisco sf350-52p firmware
- version/cisco sf350-52p firmware/2.5
- canonical/cisco sf355-10p
- version/cisco sf355-10p/2.5
- canonical/cisco sg355-10p
- canonical/cisco sg350x-8pmd firmware
- version/cisco sg350x-8pmd firmware/2.5
- canonical/cisco sg350x-12pmv firmware
- version/cisco sg350x-12pmv firmware/2.5
- canonical/cisco sg350x-24p firmware
- version/cisco sg350x-24p firmware/2.5
- canonical/cisco sg350x-24 firmware
- version/cisco sg350x-24 firmware/2.5
- canonical/cisco sg350x-24mp
- version/cisco sg350x-24mp/2.5
- canonical/cisco sg350x-24mp firmware
- canonical/cisco sg350x-24pd firmware
- canonical/cisco sg350x-24pv firmware
- canonical/cisco sg350x-48 firmware
- version/cisco sg350x-48 firmware/2.5
- canonical/cisco sg350x-48p firmware
- version/cisco sg350x-48p firmware/2.5
- canonical/cisco sg350x-48mp
- version/cisco sg350x-48mp/2.5
- canonical/cisco sg350x-48mp firmware
- canonical/cisco sg350x-48pv
- version/cisco sg350x-48pv/2.5
- canonical/cisco sg350xg-2f10
- version/cisco sg350xg-2f10/2.5
- canonical/cisco sg350xg-2f10 firmware
- canonical/cisco sg350xg-24f firmware
- version/cisco sg350xg-24f firmware/2.5
- canonical/cisco sg350xg-48t firmware
- version/cisco sg350xg-48t firmware/2.5
- canonical/cisco sx350x firmware
- version/cisco sx350x firmware/2.5
- canonical/cisco sx350x-08 firmware
- canonical/cisco sx350x-12
- version/cisco sx350x-12/2.5
- canonical/cisco sx350x-12 firmware
- canonical/cisco sx350x-24 firmware
- version/cisco sx350x-24 firmware/2.5
- canonical/cisco sx350x-52
- version/cisco sx350x-52/2.5
- canonical/cisco sx350x-52 firmware
- canonical/cisco sf550x-24p
- version/cisco sf550x-24p/2.5
- canonical/cisco sf550x-24 firmware
- canonical/cisco sf550x-24p firmware
- canonical/cisco sf550x-24mp firmware
- version/cisco sf550x-24mp firmware/2.5
- canonical/cisco sf550x-48
- version/cisco sf550x-48/2.5
- canonical/cisco sf550x-48 firmware
- canonical/cisco sf550x-48p firmware
- version/cisco sf550x-48p firmware/2.5
- canonical/cisco sg550x-48p
- canonical/cisco sg550x-48mp firmware
- version/cisco sg550x-48mp firmware/2.5
- canonical/cisco sf550x-48mp firmware
- canonical/cisco sg550x-24p firmware
- version/cisco sg550x-24p firmware/2.5
- canonical/cisco sg550x-24 firmware
- canonical/cisco sg550x-24mp firmware
- version/cisco sg550x-24mp firmware/2.5
- canonical/cisco sg550x-24mpp firmware
- version/cisco sg550x-24mpp firmware/2.5
- canonical/cisco sg550x-48 firmware
- canonical/cisco sg550x-48p firmware
- version/cisco sg550x-48p firmware/2.5
- canonical/cisco sg500xg-8f8t firmware
- version/cisco sg500xg-8f8t firmware/2.5
- canonical/cisco sg550xg-8f8t firmware
- canonical/cisco sg550xg-24f firmware
- version/cisco sg550xg-24f firmware/2.5
- canonical/cisco sg550xg-24t
- version/cisco sg550xg-24t/2.5
- canonical/cisco sg550xg-48t firmware
- version/cisco sg550xg-48t firmware/2.5
- canonical/cisco sx550x-12f firmware
- version/cisco sx550x-12f firmware/2.5
- canonical/cisco sx550x firmware
- version/cisco sx550x firmware/2.5
- canonical/cisco sx550x-16ft firmware
- canonical/cisco sx550x-24ft firmware
- canonical/cisco sx550x-24f firmware
- canonical/cisco sx550x-52
- version/cisco sx550x-52/2.5
- canonical/cisco cbs250-8t-d firmware
- version/cisco cbs250-8t-d firmware/3.1
- canonical/cisco cbs250-8pp-d
- version/cisco cbs250-8pp-d/3.1
- canonical/cisco cbs250 series switches
- canonical/cisco business 250-8t-e-2g firmware
- version/cisco business 250-8t-e-2g firmware/3.1
- canonical/cisco cbs250-8t-e-2g firmware
- canonical/cisco cbs250-8pp-e-2g
- version/cisco cbs250-8pp-e-2g/3.1
- canonical/cisco cbs250-8pp-e-2g firmware
- version/cisco cbs250-8pp-e-2g firmware/3.1
- canonical/cisco cbs250-8p-e-2g
- canonical/cisco cbs250-8fp-e-2g firmware
- version/cisco cbs250-8fp-e-2g firmware/3.1
- canonical/cisco business 250-16t-2g firmware
- version/cisco business 250-16t-2g firmware/3.1
- canonical/cisco cbs250-16t-2g firmware
- canonical/cisco cbs250-16p-2g firmware
- version/cisco cbs250-16p-2g firmware/3.1
- canonical/cisco cbs250-24t-4g firmware
- version/cisco cbs250-24t-4g firmware/3.1
- canonical/cisco cbs250-24pp-4g firmware
- version/cisco cbs250-24pp-4g firmware/3.1
- canonical/cisco cbs250-24p-4g firmware
- version/cisco cbs250-24p-4g firmware/3.1
- canonical/cisco cbs250-24fp-4g firmware
- version/cisco cbs250-24fp-4g firmware/3.1
- canonical/cisco cbs250-48t-4g
- version/cisco cbs250-48t-4g/3.1
- canonical/cisco cbs250-48t-4g firmware
- canonical/cisco cbs250-48p-4g
- version/cisco cbs250-48p-4g/3.1
- canonical/cisco cbs250-48pp-4g
- canonical/cisco cbs250-48p-4g firmware
- canonical/cisco cbs250-24t-4x firmware
- version/cisco cbs250-24t-4x firmware/3.1
- canonical/cisco cbs250-24p-4x
- version/cisco cbs250-24p-4x/3.1
- canonical/cisco cbs250-24p-4x firmware
- canonical/cisco cbs250-24fp-4x
- version/cisco cbs250-24fp-4x/3.1
- canonical/cisco cbs250-24fp-4x firmware
- canonical/cisco cbs250-48t-4x firmware
- version/cisco cbs250-48t-4x firmware/3.1
- canonical/cisco cbs250-48p-4x
- version/cisco cbs250-48p-4x/3.1
- canonical/cisco cbs250-48p-4x firmware
- canonical/cisco cbs350-8t-e-2g
- version/cisco cbs350-8t-e-2g/3.1
- canonical/cisco cbs350-8t-e-2g firmware
- canonical/cisco cbs350-8p-2g
- version/cisco cbs350-8p-2g/3.1
- canonical/cisco cbs350-8p-2g firmware
- canonical/cisco cbs350-8p-e-2g firmware
- version/cisco cbs350-8p-e-2g firmware/3.1
- canonical/cisco cbs350-8fp-2g firmware
- canonical/cisco cbs350-8fp-e-2g
- version/cisco cbs350-8fp-e-2g/3.1
- canonical/cisco business 350-8fp-e-2g
- canonical/cisco cbs350-8s-e-2g
- version/cisco cbs350-8s-e-2g/3.1
- canonical/cisco cbs350-8s-e-2g firmware
- canonical/cisco cbs350-16t-2g
- version/cisco cbs350-16t-2g/3.1
- canonical/cisco cbs350-16t-2g firmware
- canonical/cisco cbs350-16t-e-2g
- version/cisco cbs350-16t-e-2g/3.1
- canonical/cisco cbs350-16p-2g
- version/cisco cbs350-16p-2g/3.1
- canonical/cisco cbs350-16p-e-2g firmware
- version/cisco cbs350-16p-e-2g firmware/3.1
- canonical/cisco cbs350-16fp-2g
- version/cisco cbs350-16fp-2g/3.1
- canonical/cisco cbs350-16fp-2g firmware
- canonical/cisco cbs350-24t-4g firmware
- version/cisco cbs350-24t-4g firmware/3.1
- canonical/cisco cbs350-24p-4g firmware
- version/cisco cbs350-24p-4g firmware/3.1
- canonical/cisco cbs350-24fp-4g
- version/cisco cbs350-24fp-4g/3.1
- canonical/cisco cbs350-24fp-4g firmware
- canonical/cisco cbs350-24s-4g
- version/cisco cbs350-24s-4g/3.1
- canonical/cisco cbs350-24s-4g firmware
- canonical/cisco cbs350-48t-4g firmware
- version/cisco cbs350-48t-4g firmware/3.1
- canonical/cisco cbs350-48t-4g
- canonical/cisco cbs350-48p-4g
- version/cisco cbs350-48p-4g/3.1
- canonical/cisco cbs350-48p-4g firmware
- canonical/cisco cbs350-48fp-4g
- version/cisco cbs350-48fp-4g/3.1
- canonical/cisco cbs350-48fp-4g firmware
- canonical/cisco cbs350-24t-4x
- version/cisco cbs350-24t-4x/3.1
- canonical/cisco cbs350-24t-4x firmware
- canonical/cisco cbs350-24p-4x firmware
- version/cisco cbs350-24p-4x firmware/3.1
- canonical/cisco cbs350-24fp-4x
- version/cisco cbs350-24fp-4x/3.1
- canonical/cisco cbs350-24fp-4x firmware
- canonical/cisco cbs350-48t-4x firmware
- version/cisco cbs350-48t-4x firmware/3.1
- canonical/cisco cbs350-48p-4x firmware
- version/cisco cbs350-48p-4x firmware/3.1
- canonical/cisco cbs350-48fp-4x
- version/cisco cbs350-48fp-4x/3.1
- canonical/cisco cbs350-8mg-2x firmware
- version/cisco cbs350-8mg-2x firmware/3.1
- canonical/cisco cbs350-8mp-2x
- version/cisco cbs350-8mp-2x/3.1
- canonical/cisco cbs350-8mp-2x firmware
- canonical/cisco cbs350-24mgpa-4x firmware
- version/cisco cbs350-24mgpa-4x firmware/3.1
- canonical/cisco cbs350-24mg-4x
- canonical/cisco cbs350-12np-4x
- version/cisco cbs350-12np-4x/3.1
- canonical/cisco cbs350-12np-4x firmware
- canonical/cisco cbs350-24ngp-4x firmware
- version/cisco cbs350-24ngp-4x firmware/3.1
- canonical/cisco cbs350-48ngp-4x firmware
- version/cisco cbs350-48ngp-4x firmware/3.1
- canonical/cisco cbs350-8xt firmware
- version/cisco cbs350-8xt firmware/3.1
- canonical/cisco cbs350-12xs
- version/cisco cbs350-12xs/3.1
- canonical/cisco cbs350
- canonical/cisco cbs350-12xt
- version/cisco cbs350-12xt/3.1
- canonical/cisco cbs350-12xt firmware
- canonical/cisco cbs350-16xts firmware
- version/cisco cbs350-16xts firmware/3.1
- canonical/cisco cbs350-16xt
- canonical/cisco cbs350-24xs firmware
- version/cisco cbs350-24xs firmware/3.1
- canonical/cisco cbs350-24xs
- canonical/cisco cbs350-24xt firmware
- version/cisco cbs350-24xt firmware/3.1
- canonical/cisco cbs350-24xt
- version/cisco cbs350-24xt/3.1
- canonical/cisco cbs350-48xt-4x firmware
- version/cisco cbs350-48xt-4x firmware/3.1
- canonical/cisco 250/350/350x/550x/esw2 series switches firmware
- version/cisco 250/350/350x/550x/esw2 series switches firmware/2.5
- canonical/cisco business 350 series
- canonical/cisco esw2-350g-52dc
- version/cisco esw2-350g-52dc/2.5
- canonical/cisco esw2-350g-52dc firmware
- canonical/cisco esw2-550x-48 firmware
- canonical/cisco esw2-550x-48dc firmware
- canonical/cisco sf200-24 firmware
- canonical/cisco sf200-24p
- canonical/cisco sf200-24p firmware
- canonical/cisco sf200-24fp firmware
- canonical/cisco sf200-48 firmware
- canonical/cisco sf200-48p firmware
- canonical/cisco sg200-08
- canonical/cisco sg200-08 firmware
- canonical/cisco sg200-08p firmware
- canonical/cisco sg200-10fp firmware
- canonical/cisco sg200-18 firmware
- canonical/cisco sg200-26p firmware
- canonical/cisco sg200-26 firmware
- canonical/cisco sg200-26fp firmware
- canonical/cisco sg200-50p firmware
- canonical/cisco sg200-50fp
- canonical/cisco sg200-50 firmware
- canonical/cisco sf300-08 firmware
- version/cisco sf300-08 firmware/1.4.11.02
- canonical/cisco sf302-08 firmware
- version/cisco sf302-08 firmware/1.4.11.02
- canonical/cisco sf302-08p
- version/cisco sf302-08p/1.4.11.02
- canonical/cisco sf302-08
- version/cisco sf302-08/1.4.11.02
- canonical/cisco sf300-24p firmware
- version/cisco sf300-24p firmware/1.4.11.02
- canonical/cisco sf300-24 firmware
- canonical/cisco sf300-24p
- version/cisco sf300-24p/1.4.11.02
- canonical/cisco sf300-24pp firmware
- canonical/cisco sf300-24mp firmware
- version/cisco sf300-24mp firmware/1.4.11.02
- canonical/cisco sf300-48p firmware
- version/cisco sf300-48p firmware/1.4.11.02
- canonical/cisco sf300-48p
- canonical/cisco sf300-48pp firmware
- version/cisco sf300-48pp firmware/1.4.11.02
- canonical/cisco sg300 series firmware
- version/cisco sg300 series firmware/1.4.11.02
- canonical/cisco sg300-10 firmware
- canonical/cisco sg300-10sfp firmware
- canonical/cisco sg300-10p firmware
- version/cisco sg300-10p firmware/1.4.11.02
- canonical/cisco sg300-10pp
- version/cisco sg300-10pp/1.4.11.02
- canonical/cisco sg300-10mp firmware
- version/cisco sg300-10mp firmware/1.4.11.02
- canonical/cisco sg300-10mpp firmware
- version/cisco sg300-10mpp firmware/1.4.11.02
- canonical/cisco sg300-20 firmware
- canonical/cisco sg300-28p
- version/cisco sg300-28p/1.4.11.02
- canonical/cisco sg300-28 firmware
- canonical/cisco sg300-28p firmware
- version/cisco sg300-28p firmware/1.4.11.02
- canonical/cisco sg300-28pp firmware
- version/cisco sg300-28pp firmware/1.4.11.02
- canonical/cisco sg300-28mp
- version/cisco sg300-28mp/1.4.11.02
- canonical/cisco sg300-52p
- canonical/cisco sg300-52p firmware
- version/cisco sg300-52p firmware/1.4.11.02
- canonical/cisco sg300-52mp firmware
- version/cisco sg300-52mp firmware/1.4.11.02
- canonical/cisco sg300-28sfp firmware
- canonical/cisco sf500-24
- version/cisco sf500-24/2.5.5.0
- canonical/cisco sf500-24mp
- canonical/cisco sf500-24p
- version/cisco sf500-24p/2.5.5.0
- canonical/cisco sf500-24p firmware
- canonical/cisco 500 series switch firmware
- version/cisco 500 series switch firmware/2.5.5.0
- canonical/cisco sf500-24mp firmware
- canonical/cisco sf500-48p firmware
- version/cisco sf500-48p firmware/2.5.5.0
- canonical/cisco sf500-48 firmware
- canonical/cisco sf500-48mp firmware
- canonical/cisco sg500-28
- version/cisco sg500-28/2.5.5.0
- canonical/cisco sg500-28pp firmware
- canonical/cisco sg500-28p
- version/cisco sg500-28p/2.5.5.0
- version/cisco sg500-28pp firmware/2.5.5.0
- canonical/cisco sg500-28mpp firmware
- canonical/cisco sg500-52p
- version/cisco sg500-52p/2.5.5.0
- canonical/cisco sg500-52 firmware
- canonical/cisco sg500-52mp
- version/cisco sg500-52mp/2.5.5.0
- canonical/cisco sg500-52
- canonical/cisco sg500x-24
- version/cisco sg500x-24/2.5.5.0
- canonical/cisco sg500x-24p
- version/cisco sg500x-24p/2.5.5.0
- canonical/cisco sg500x-24mpp
- version/cisco sg500x-24mpp/2.5.5.0
- canonical/cisco sg500x-24mpp firmware
- canonical/cisco sg500x-48
- version/cisco sg500x-48/2.5.5.0
- canonical/cisco sg500x-48mp firmware
- canonical/cisco sg500x-48p
- version/cisco sg500x-48p/2.5.5.0
- version/cisco sg500x-48mp firmware/2.5.5.0
- canonical/cisco sg500xg-8f8t
- version/cisco sg500xg-8f8t/2.5.5.0