Detections
Analytics
Cisco Unified Communications Manager (CUCM) 14.x < 14SU6 / 15.x < 15SU5 SSRF (cisco-sa-cucm-ssrf-cXPnHcW)
high Nessus Plugin ID 318849
Synopsis
The remote device is missing a vendor-supplied security patch.Description
According to its self-reported version, Cisco Unified Communications Manager is affected by a server-side request forgery (SSRF) vulnerability.- A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct server-side request forgery (SSRF) attacks through an affected device. This vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to write files to the underlying operating system that could be used later to elevate to root.
(CVE-2026-20230)
Note: To exploit this vulnerability, the WebDialer service must be enabled. WebDialer is disabled by default.
Please see the included Cisco BID and Cisco Security Advisory for more information.
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCws67331.See Also
Plugin Details
Severity: High
ID: 318849
File Name: cisco-sa-cucm-ssrf-cXPnHcW.nasl
Version: 1.1
Type: Combined
Family: CISCO
Published: 6/5/2026
Updated: 6/5/2026
Configuration: Enable paranoid mode
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.2
CVSS v2
Risk Factor: High
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N
CVSS Score Source: CVE-2026-20230
CVSS v3
Risk Factor: High
Base Score: 8.6
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Vulnerability Information
CPE: cpe:/a:cisco:unified_communications_manager
Required KB Items: Settings/ParanoidReport, Host/Cisco/CUCM/Version
Patch Publication Date: 6/3/2026
Vulnerability Publication Date: 6/3/2026
Reference Information
CVE: CVE-2026-20230