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CRITICAL: THIS VULNERABILITY IS ACTIVELY BEING EXPLOITED IN THE WILD (CISA KEV CATALOG)
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CVE-2025-20393

Exploited

Cisco Secure Email Gateway - Spam Quarantine

Cisco CVSS 10 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in the Spam Quarantine feature of Cisco AsyncOS Software could allow an unauthenticated, remote attacker to execute arbitrary system commands on an affected device with root privileges. This vulnerability is due to insufficient validation of HTTP requests by the Spam Quarantine feature."

Operational Audit Arsenal

Target Type Firmware Image
Target Asset AsyncOS
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 disruption to email services

Internal Work Notes

CVE-2025-20393: Unauthenticated remote code execution vulnerability in Cisco Secure Email Gateway Spam Quarantine feature, requiring urgent patching to prevent potential root-level access

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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.