CVE-2022-20813

Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities

MEDIUM
5.9
CVSS Score
Published: July 6, 2022 at 08:30 PM UTC
Updated: June 17, 2026 at 04:25 AM UTC
2 products affected across 1 vendorTelepresence Video Communication ServerExpressway

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Severity
MEDIUM5.9
Exploit prediction
EPSS 1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < x14.0.7
Affected range stops below x14.0.7, so it looks safe — our inference, not a vendor statement
v < x14.0.7
Affected range stops below x14.0.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-158CWE-295

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