VULNERABILITY INTELLIGENCE

CVE-2022-20812

CVSS score9 CRITICAL
EPSS probability1.93%
CISA KEVNot currently listed
Published2022-07-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L

Description

Multiple vulnerabilities in the API and in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow a remote attacker to overwrite arbitrary files or conduct null byte poisoning attacks on an affected device. Note: Cisco Expressway Series refers to the Expressway Control (Expressway-C) device and the Expressway Edge (Expressway-E) device. For more information about these vulnerabilities, see the Details section of this advisory.

Weakness classification

  • psirt@cisco.com: CWE-158
  • nvd@nist.gov: CWE-22

Primary references