CVE-2024-20253
CRITICALCisco Unified Communications Manager < 12.5(1)su8 & 14.0-14su3 - RCE via Deserialization
Title source: llmDescription
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
Core References
Issue Tracking, Vendor Advisory
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-rce-bWNzQcUm
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