GCVE-110-NCSC-2026-36

Advisory PublishedCVSS 8.2/10

Vulnetix · Advisory published January 22, 2026

A critical vulnerability in Cisco Unified Communications products allows unauthenticated remote attackers to execute arbitrary commands on the operating system due to improper input validation in HTTP requests.

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Weaknesses (CWE)

CWE-94Improper Control of Generation of Code ('Code Injection')CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CWE-732Incorrect Permission Assignment for Critical ResourceCWE-400Uncontrolled Resource Consumption

Risk Scores

CVSS 3.1

8.2/10

High · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Affected Products

Vendor	Product	Versions	Platforms
Cisco	vers:unknown/*	—	—

Aliases

CVE-2026-20045 CVE-2026-20055 CVE-2026-20080 CVE-2026-20092 CVE-2026-20109

References

advisory

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