CVE-2024-20375

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-20375
A vulnerability in the SIP call processing function of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper parsing of SIP messages. An attacker could exploit this vulnerability by sending a crafted SIP message to an affected Cisco Unified CM or Cisco Unified CM SME device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition that interrupts the communications of reliant voice and video devices.

8.6 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-dos-kkHq43We Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:cisco:unified_communications_manager:12.0\(1\)su1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.0\(1\)su2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.0\(1\)su3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.0\(1\)su4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.0\(1\)su5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su7:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su7a:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su8:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su8a:*:*:*:*:*:*:*
History

01 Aug 2025, 20:37

Type Values Removed Values Added
Summary
  • (es) Una vulnerabilidad en la función de procesamiento de llamadas SIP de Cisco Unified Communications Manager (Unified CM) y Cisco Unified Communications Manager Session Management Edition (Unified CM SME) podría permitir que un atacante remoto no autenticado provoque una condición de denegación de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad se debe a un análisis inadecuado de los mensajes SIP. Un atacante podría aprovechar esta vulnerabilidad enviando un mensaje SIP manipulado a un dispositivo Cisco Unified CM o Cisco Unified CM SME afectado. Un exploit exitoso podría permitir al atacante hacer que el dispositivo se recargue, lo que resultaría en una condición DoS que interrumpa las comunicaciones de los dispositivos de voz y video dependientes.
References () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-dos-kkHq43We - () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-dos-kkHq43We - Vendor Advisory
CPE cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su8:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.0\(1\)su3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.0\(1\)su4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.0\(1\)su5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su8a:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.0\(1\)su1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su7a:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su7:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.0\(1\)su2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\)su2:*:*:*:*:*:*:*
First Time Cisco
Cisco unified Communications Manager

21 Aug 2024, 17:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-08-21 17:15

Updated : 2025-08-01 20:37

NVD link : CVE-2024-20375

Mitre link : CVE-2024-20375

CVE.ORG link : CVE-2024-20375

JSON object : View

Products Affected

cisco

  • unified_communications_manager
CWE
CWE-787

Out-of-bounds Write