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Cisco Unified Communications Manager

1 CVEs product

Monthly

CVE-2026-20230 HIGH POC KEV THREAT NEWS Act Now

Server-side request forgery in Cisco Unified Communications Manager (Unified CM) and Unified CM Session Management Edition allows remote unauthenticated attackers to write files to the underlying operating system via crafted HTTP requests, which Cisco notes can be leveraged to escalate to root. Cisco has assigned this a Critical Security Impact Rating despite the 8.6 CVSS score because of the root-escalation pathway. No public exploit identified at time of analysis, and exploitation requires the non-default WebDialer service to be enabled.

SSRF Cisco Cisco Unified Communications Manager
NVD VulDB GitHub
CVSS 3.1
8.6
EPSS
0.0%
Threat
4.7
EPSS 0% 4.7 CVSS 8.6
HIGH POC KEV THREAT Act Now

Server-side request forgery in Cisco Unified Communications Manager (Unified CM) and Unified CM Session Management Edition allows remote unauthenticated attackers to write files to the underlying operating system via crafted HTTP requests, which Cisco notes can be leveraged to escalate to root. Cisco has assigned this a Critical Security Impact Rating despite the 8.6 CVSS score because of the root-escalation pathway. No public exploit identified at time of analysis, and exploitation requires the non-default WebDialer service to be enabled.

SSRF Cisco Cisco Unified Communications Manager
NVD VulDB GitHub

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