Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities

published 2022-05-27 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-26056

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits: 0; none known

Multiple vulnerabilities in the API and web-based management interfaces of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to write files or disclose sensitive information on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-11-06)

Exploit prediction

0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD	3.1	7.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
NVD	2.0	5.5	AV:N/AC:L/Au:S/C:P/I:N/A:P

Affected products

Cisco Cisco TelePresence Video Communication Server (VCS) Expressway

Classification

Weakness

CWE-532 Insertion of Sensitive Information into Log File

References

tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-filewrite-bsFVwueV
vendor-advisory

Sources

CVE List CVE-2022-20806
NVD CVE-2022-20806

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary