CVE-2021-34716

HighCVSS 7.2/10Last modified Jun 17, 2026

Description

A vulnerability in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to execute arbitrary code on the underlying operating system as the root user. This vulnerability is due to incorrect handling of certain crafted software images that are uploaded to the affected device. An attacker could exploit this vulnerability by authenticating to the system as an administrative user and then uploading specific crafted software images to the affected device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system as the root user.

Metrics

CVSS 3.1 7.2/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-460CWE-755

Affected software

No affected versions have been published.

Timeline

Published
Aug 18, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-34716: High severity, CVSS 7.2 | Vulnix