Home Cisco CVE-2025-20160
Back to Cisco

CVE-2025-20160

Cisco IOS XE - TACACS+ Protocol

Cisco CVSS 8.1 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in the implementation of the TACACS+ protocol in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to view sensitive data or bypass authentication. This vulnerability exists because the system does not properly check whether the required TACACS+ shared secret is configured."

Operational Audit Arsenal

Target Type Firmware Image
Target Asset IOS Image
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

Network connectivity may be interrupted during the patching process

Internal Work Notes

CVE-2025-20160: TACACS+ protocol vulnerability in Cisco IOS XE, potential for unauthorized access or data exposure, requires firmware update

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.