CVE-2021-1279: 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 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is CVE-2021-1279?
CVE-2021-1279 is a vulnerability in Cisco SD-WAN products that allows an unauthenticated remote attacker to execute denial of service (DoS) attacks.
What is the severity of CVE-2021-1279?
The severity of CVE-2021-1279 is high, with a severity value of 8.6.
Which Cisco SD-WAN products are affected by CVE-2021-1279?
Cisco Ios Xe Sd-wan and Cisco Sd-wan Firmware versions 18.3.5, 18.3.8, 18.4.1, 18.4.4, 18.4.5, 19.2.0, 19.2.1, 19.2.2, 19.2.99, and 20.1.0 are affected.
How can an attacker exploit CVE-2021-1279?
An attacker can exploit CVE-2021-1279 by sending specially crafted packets to the vulnerable device, causing it to crash and result in a denial of service condition.
Is there a fix available for CVE-2021-1279?
Yes, Cisco has released software updates to address the vulnerability. It is recommended to upgrade to the latest available version.
- collector/nvd-index
- collector/nvd-api
- agent/weakness
- agent/author
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/references
- agent/title
- agent/last-modified-date
- agent/tags
- agent/first-publish-date
- agent/event
- agent/description
- 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