Home Cisco CVE-2024-20375
Back to Cisco

CVE-2024-20375

Cisco Unified Communications Manager - SIP Call Processing

Cisco CVSS 8.6 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in the SIP call processing function of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to cause a denial of service condition. This vulnerability is due to improper parsing of SIP messages and can be exploited by sending a crafted SIP message to an affected device."

Operational Audit Arsenal

Target Type Firmware Image
Target Asset Cisco Unified CM Firmware
Standard Path Global Firmware

Manual Verification Required

This is a non-Windows asset (Cisco). Use the target asset details and official path provided above to verify your current version against the official vendor advisories listed below.

Patch Impact Forecast

Reboot Required Likely

High, as the device may reload and interrupt communications of reliant voice and video devices

Internal Work Notes

CVE-2024-20375: Potential DoS vulnerability in Cisco Unified Communications Manager SIP call processing, requiring firmware update and reboot

Technical Intelligence & Operational Utilities • Delivered Weekly

Intelligence Sources

Related Cisco Threats

Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.