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CVE-2025-20327

Cisco IOS - Web UI

Cisco CVSS 7.7 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in the web UI of Cisco IOS Software could allow an authenticated, remote attacker with low privileges to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation and can be exploited by sending a crafted URL in an HTTP request."

Operational Audit Arsenal

Target Type Firmware Image
Target Asset Cisco IOS
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-2025-20327: Cisco IOS Web UI DoS vulnerability - verify device firmware version and apply patch if necessary, using the CLI command 'show version' to verify the version

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.