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CVE-2025-20139

Cisco Enterprise Chat and Email - Chat Messaging

Cisco CVSS 7.5 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in Cisco Enterprise Chat and Email could allow an unauthenticated, remote attacker to cause a denial of service condition by sending malicious requests to a messaging chat entry point. This could result in the application stopping responding and requiring manual restart by an administrator."

Operational Audit Arsenal

Target Type Application
Target Asset ECE Chat Service
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

Internal Work Notes

CVE-2025-20139: Cisco ECE Chat Messaging DoS Vulnerability - Verify version and apply patch to prevent unauthenticated DoS attacks

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.