CVE-2021-34716 is a critical vulnerability in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS). It allows an authenticated, remote attacker to execute arbitrary code as the root user by uploading specially crafted software images. With a CVSS score of 7.2 (High), this vulnerability requires high privileges (PR:H) but has low attack complexity (AC:L) and can lead to complete compromise of confidentiality, integrity, and availability (C:H/I:H/A:H). While not listed in CISA's KEV catalog, there is some community discussion and media coverage, though no public exploit code (Metasploit, Nuclei, ExploitDB) is currently available.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= x8.6.0, < x14.1CPE matchmatch criteria | cpe:2.3:a:cisco:expressway:*:*:*:*:*:*:*:* | ||
>= x8.6, <= x14.0.3CPE matchmatch criteria | cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.