How severe is CVE-2023-20209?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2023-20209 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Cisco Telepresence Video Communication Server (Vcs) Expressway

CVE-2023-20209

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 with read-write privileges on the application to perform…

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.343 (97.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.

Affected products

Cisco Telepresence Video Communication Server (Vcs) Expressway — versions X8.5.1, X8.5.3, X8.5

Weakness classification (CWE)

CWE-94 — Code Injection

Public proof-of-concept exploits

References

cisco-sa-expressway-injection-X475EbTQ

Frequently asked questions

What is CVE-2023-20209?: CVE-2023-20209 is a medium-severity vulnerability in Cisco Telepresence Video Communication Server (Vcs) Expressway, classified under Code Injection. CVSS score: 6.5/10. Published 2023-08-16.
How severe is CVE-2023-20209?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2023-20209 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.