Detections
Analytics

Cisco Unified Communications Manager IM & Presence Service Remote Code Execution (cisco-sa-voice-rce-mORhqY4b)

high Nessus Plugin ID 296365

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version, Cisco Unified Communications Manager IM & Presence 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 CSCwr29216

See Also

http://www.nessus.org/u?3417e480

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwr29216

Plugin Details

Severity: High

ID: 296365

File Name: cisco-sa-voice-rce-mORhqY4b_imp.nasl

Version: 1.1

Type: local

Family: CISCO

Published: 1/23/2026

Updated: 1/23/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

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:unified_communications_manager_im_and_presence_service

Required KB Items: installed_sw/Cisco Unified CM IM&P

Patch Publication Date: 1/21/2026

Vulnerability Publication Date: 1/21/2026

Reference Information

CVE: CVE-2026-20045

CISCO-SA: cisco-sa-voice-rce-mORhqY4b

IAVA: 2026-A-0082

CISCO-BUG-ID: CSCwr29216