CVE-2024-20253

CRITICAL

Cisco Unified Communications Manager < 12.5(1)su8 & 14.0-14su3 - RCE via Deserialization

Title source: llm
STIX 2.1

Description

A vulnerability in multiple Cisco Unified Communications and Contact Center Solutions products could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to the improper processing of user-provided data that is being read into memory. An attacker could exploit this vulnerability by sending a crafted message to a listening port of an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with the privileges of the web services user. With access to the underlying operating system, the attacker could also establish root access on the affected device.

References (1)

Core 1

Scores

CVSS v3 9.9
EPSS 0.0303
EPSS Percentile 86.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-502
Status published
Products (8)
cisco/unified_communications_manager < 12.5\(1\)su8 (2 CPE variants)
cisco/unified_communications_manager 14.0 - 14su3
cisco/unified_communications_manager_im_and_presence_service < 12.5\(1\)su8
cisco/unified_contact_center_express 12.5\(1\)
cisco/unity_connection < 12.5\(1\)su8
cisco/virtualized_voice_browser 12.5\(1\)
cisco/virtualized_voice_browser 12.6\(1\)
cisco/virtualized_voice_browser 12.6\(2\)
Published Jan 26, 2024
Tracked Since Feb 18, 2026