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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.007 (53.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
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
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.