CVE-2021-1241: Cisco SD-WAN Denial of Service Vulnerabilities
First published: Wed Jan 20 2021(Updated: )
Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute denial of service (DoS) attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE SD-WAN | ||
| Cisco Sd-wan Firmware | =18.3.5 | |
| Cisco Sd-wan Firmware | =18.3.8 | |
| Cisco Sd-wan Firmware | =18.4.1 | |
| Cisco Sd-wan Firmware | =18.4.4 | |
| Cisco Sd-wan Firmware | =18.4.5 | |
| Cisco Sd-wan Firmware | =19.2.0 | |
| Cisco Sd-wan Firmware | =19.2.1 | |
| Cisco Sd-wan Firmware | =19.2.2 | |
| Cisco Sd-wan Firmware | =19.2.99 | |
| Cisco Sd-wan Firmware | =20.1.0 | |
| Cisco Sd-wan Vsmart Controller Firmware | ||
| Cisco Vedge 100 Router | ||
| Cisco Vedge 1000 Router | ||
| Cisco Vedge 100b Router | ||
| Cisco Vedge 100m Router | ||
| Cisco Vedge 100wm Router | ||
| Cisco Vedge 2000 Router | ||
| Cisco Vedge 5000 Router | ||
| Cisco Vedge Cloud Router | ||
| Cisco Catalyst SD-WAN Manager | ||
| Cisco Sd-wan Vbond Orchestrator |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-1241.
What is the severity of CVE-2021-1241?
The severity of CVE-2021-1241 is high.
Which Cisco products are affected by CVE-2021-1241?
Cisco SD-WAN products, specifically Cisco IOS XE SD-WAN and Cisco SD-WAN Firmware versions 18.3.5 to 20.1.0, are affected by CVE-2021-1241.
What is the impact of CVE-2021-1241?
CVE-2021-1241 allows an unauthenticated remote attacker to execute denial of service (DoS) attacks against an affected device.
Is there a fix for CVE-2021-1241?
Cisco has released patches and updates to address CVE-2021-1241. It is recommended to update to the latest version of the affected software.
- collector/nvd-api
- collector/nvd-index
- agent/author
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/weakness
- agent/title
- agent/references
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/tags
- agent/event
- vendor/cisco
- canonical/cisco ios xe sd-wan
- canonical/cisco sd-wan firmware
- version/cisco sd-wan firmware/18.3.5
- version/cisco sd-wan firmware/18.3.8
- version/cisco sd-wan firmware/18.4.1
- version/cisco sd-wan firmware/18.4.4
- version/cisco sd-wan firmware/18.4.5
- version/cisco sd-wan firmware/19.2.0
- version/cisco sd-wan firmware/19.2.1
- version/cisco sd-wan firmware/19.2.2
- version/cisco sd-wan firmware/19.2.99
- version/cisco sd-wan firmware/20.1.0
- canonical/cisco sd-wan vsmart controller firmware
- canonical/cisco vedge 100 router
- canonical/cisco vedge 1000 router
- canonical/cisco vedge 100b router
- canonical/cisco vedge 100m router
- canonical/cisco vedge 100wm router
- canonical/cisco vedge 2000 router
- canonical/cisco vedge 5000 router
- canonical/cisco vedge cloud router
- canonical/cisco catalyst sd-wan manager
- canonical/cisco sd-wan vbond orchestrator