8.6
CWE
20
Advisory Published

cisco-sa-COPS-VLD-MpbTvGEW: Cisco IOS XE Software Common Open Policy Service Engine Denial of Service Vulnerability

First published: Thu Sep 24 2020(Updated: )

A vulnerability in the Common Open Policy Service (COPS) engine of Cisco IOS XE Software on Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to crash a device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a malformed COPS message to the device. A successful exploit could allow the attacker to crash the device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-COPS-VLD-MpbTvGEW This advisory is part of the September 24, 2020, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 25 Cisco Security Advisories that describe 34 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: September 2020 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication.

Affected SoftwareAffected VersionHow to fix
Cisco IOS XE Software
Cisco cBR-8 Converged Broadband Router

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of cisco-sa-COPS-VLD-MpbTvGEW?

    The severity of cisco-sa-COPS-VLD-MpbTvGEW is critical due to the potential for remote unauthenticated attackers to crash affected devices.

  • How do I fix cisco-sa-COPS-VLD-MpbTvGEW?

    You can mitigate cisco-sa-COPS-VLD-MpbTvGEW by applying the recommended software updates provided by Cisco for affected IOS XE Software and cBR-8 routers.

  • What devices are affected by cisco-sa-COPS-VLD-MpbTvGEW?

    cisco-sa-COPS-VLD-MpbTvGEW affects Cisco IOS XE Software and Cisco cBR-8 Converged Broadband Routers.

  • Can cisco-sa-COPS-VLD-MpbTvGEW be exploited remotely?

    Yes, cisco-sa-COPS-VLD-MpbTvGEW can be exploited remotely by unauthenticated attackers.

  • What causes the vulnerability cisco-sa-COPS-VLD-MpbTvGEW?

    The cisco-sa-COPS-VLD-MpbTvGEW vulnerability is caused by insufficient input validation in the Common Open Policy Service engine.

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