Buffer overflow in Cisco Unified Communications Manager
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.
Vulnerability class: Buffer Overflow
EPSS: 0.007 (52.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Unified Communications Manager — versions 12.0(1)SU1, 12.0(1)SU2, 12.0(1)SU3
- Cisco Unified_communications_manager — versions 12.5(1)su8, 12.0(1)su1, 12.5\(1\)su2
Weakness classification (CWE)
References
- psirt@cisco.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-20375?
- CVE-2024-20375 is a high-severity vulnerability in Cisco Unified Communications Manager, classified under Out-of-bounds Write. CVSS score: 8.6/10. Published 2024-08-21.
- How severe is CVE-2024-20375?
- High severity. CVSS v3 base score is 8.6 out of 10.