8.6
High
CVE-2024-20375 A vulnerability in the SIP call processing function of Cisco Unified Communications Manager (Unified CM) and Cisco…
Description
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco Unified Communications Manager | 15 | No fix stated |
| Cisco Unified Communications Manager 14 | 14SU1 → 14 | No fix stated |
References
- cisco-sa-cucm-dos-kkHq43We sec.cloudapps.cisco.com
Timeline
- Published
- Last modified
Other CVEs of Cisco Unified Communications Manager
The 62 CVEs of Cisco Unified Communications Manager →
CVE-2026-76419
Cisco Unified Communications Manager Cross-Site Scripting Vulnerability
6.1
Medium
CVE-2026-76481
As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency…
7.5
High
CVE-2026-76487
A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session…
5.3
Medium
CVE-2026-76479
As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency…
7.8
High