CVE-2022-20812
Critical
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.
SeverityCritical
CVSS9.0
Exploit probability—
Product
Cisco Expressway
PublishedJul 6, 2022
First seenJul 6, 2022
Weakness typeCWE-158CWE-158
How to fix
Update
- cisco expresswayx14.0.7 or later
- cisco telepresence_video_communication_serverx14.0.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco expressway | v < x14.0.7 | x14.0.7 |
| cisco telepresence_video_communication_server | v < x14.0.7 | x14.0.7 |
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