Detections
Analytics
Cisco Unity Connection Remote Code Execution (cisco-sa-voice-rce-mORhqY4b)
high Nessus Plugin ID 295030
Synopsis
The remote device is missing a vendor-supplied security patch.Description
According to its self-reported version, Cisco Unity Connection is affected by a remote code execution vulnerability:- A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unity Connection, and Cisco Webex Calling Dedicated Instance could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. This vulnerability is due to improper validation of user-supplied input in HTTP requests. An attacker could exploit this vulnerability by sending a sequence of crafted HTTP requests to the web-based management interface of an affected device. A successful exploit could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges to root. (CVE-2026-20045)
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 CSCwr29208See Also
Plugin Details
Severity: High
ID: 295030
File Name: cisco-sa-voice-rce-mORhqY4b_uc.nasl
Version: 1.1
Type: combined
Family: CISCO
Published: 1/22/2026
Updated: 1/22/2026
Supported Sensors: Nessus
Risk Information
CVSS v2
Risk Factor: High
Base Score: 8.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:P/A:N
CVSS Score Source: CVE-2026-20045
CVSS v3
Risk Factor: High
Base Score: 8.2
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Vulnerability Information
CPE: cpe:/a:cisco:unity_connection
Required KB Items: installed_sw/Cisco VOSS Unity
Patch Publication Date: 1/21/2026
Vulnerability Publication Date: 1/21/2026
Reference Information
CVE: CVE-2026-20045