8.5
CVSSv2

CVE-2022-20812

Published: 06/07/2022 Updated: 07/11/2023
CVSS v2 Base Score: 8.5 | Impact Score: 9.2 | Exploitability Score: 8
CVSS v3 Base Score: 6.5 | Impact Score: 5.2 | Exploitability Score: 1.2
VMScore: 758
Vector: AV:N/AC:L/Au:S/C:N/I:C/A:C

Vulnerability Summary

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 malicious user 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.

Vulnerability Trend

Vulnerable Product Search on Vulmon Subscribe to Product

cisco telepresence video communication server

cisco expressway

Vendor Advisories

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 (Expr ...
Multiple vulnerabilities in the API and in the web-based management interface of Cisco Expressway Series Software and Cisco TelePresence Video Communication Server (VCS) Software could allow a remote attacker to bypass certificate validation or conduct cross-site request forgery attacks on an affected device Note: Cisco Expressway Series refers to ...

Recent Articles

Microsoft's July Patch Tuesday fixes actively exploited bug
The Register • Jessica Lyons Hardcastle • 01 Jan 1970

Topics Security Off-Prem On-Prem Software Offbeat Vendor Voice Vendor Voice Resources No, Windows Autopatch didn't kill the monthly patchapalooza Older AMD, Intel chips vulnerable to data-leaking 'Retbleed' Spectre variant

Patch Tuesday Despite worries that Patch Tuesday may not be as exciting now that Microsoft's Windows Autopatch is live — with a slew of caveats — the second Tuesday of this month arrived with 84 security fixes, including 4 critical bugs and one that's under active exploit.  Let's start with the one that miscreants have already found and exploited. CVE-2022-22047 is an elevation of privilege vuln in Windows' Client Server Runtime Subsystem (CSRSS). Microsoft deemed it an "important" secu...