Main Vulnerability Database Vulnerabilities #VU56029

Improper Cleanup on Thrown Exception in Cisco Expressway and Cisco TelePresence Video Communication Server - CVE-2021-34716

Published: August 23, 2021

Vulnerability identifier: #VU56029

CSH Severity: Low

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-34716

CWE-ID: CWE-460

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to incorrect handling of certain crafted software images that are uploaded to the affected device. A remote administrator can upload specially crafted software images and execute arbitrary code on the underlying operating system.

Affected software

Cisco Expressway
Cisco TelePresence Video Communication Server

How to mitigate CVE-2021-34716

Install updates from vendor's website.

Cisco Expressway - update to X14.0.3
Cisco TelePresence Video Communication Server - update to X14.0.3

External References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewrce-QPynNCjh

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