CVE-2021-1273: 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 CVE-2021-1273?
CVE-2021-1273 is a vulnerability in Cisco SD-WAN products that allows an unauthenticated remote attacker to execute denial of service (DoS) attacks.
How severe is CVE-2021-1273?
CVE-2021-1273 has a severity score of 8.6, which is considered high.
Which Cisco SD-WAN products are affected by CVE-2021-1273?
Cisco IOS XE SD-WAN, Cisco SD-WAN Firmware versions 18.3.5 to 20.1.0, Cisco SD-WAN Vsmart Controller Firmware, Cisco Catalyst SD-WAN Manager, and Cisco SD-WAN Vbond Orchestrator are affected by CVE-2021-1273.
How can an unauthenticated remote attacker exploit CVE-2021-1273?
An unauthenticated remote attacker can exploit CVE-2021-1273 by sending specially crafted packets to the affected device, leading to a denial of service (DoS) condition.
Where can I find more information about CVE-2021-1273?
You can find more information about CVE-2021-1273 on the Cisco Security Advisory at this link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-dosmulti-48jJuEUP
- collector/nvd-index
- collector/nvd-api
- 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