CVE-2022-20813
moderate-risk
Published 2022-07-06
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.
Do I need to act?
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0.40% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.0/10
Critical
NETWORK
/ LOW complexity
Affected Products (2)
Affected Vendors
References (2)
39
/ 100
moderate-risk
Severity
30/34 · Critical
Exploitability
2/34 · Minimal
Exposure
7/34 · Low