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CVE-2025-20309

Cisco Unified Communications Manager - Session Management Edition

Cisco CVSS 10 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in Cisco Unified Communications Manager and Cisco Unified Communications Manager Session Management Edition could allow an unauthenticated, remote attacker to log in to an affected device using the root account. A successful exploit could allow the attacker to log in to the affected system and execute arbitrary commands as the root user."

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

Potential service disruption during patch application

Internal Work Notes

CVE-2025-20309: Unauthenticated root login vulnerability in Cisco Unified Communications Manager, requiring immediate patching to prevent potential remote code execution

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Intelligence Sources

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