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CVE-2024-20401

Cisco Secure Email Gateway - Content Scanning and Message Filtering

Cisco CVSS 9.8 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in the content scanning and message filtering features of Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to overwrite arbitrary files on the underlying operating system, potentially leading to arbitrary code execution, modification of device configuration, or a permanent denial of service condition. An attacker could exploit this vulnerability by sending a crafted email attachment through an affected device."

Operational Audit Arsenal

Target Type File System
Target Asset Underlying Operating System Files
Standard Path Global File System

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 during patching and reboot

Internal Work Notes

CVE-2024-20401: Cisco Secure Email Gateway vulnerability allowing remote file overwrite and potential code execution, requiring manual intervention to recover from a potential denial of service condition.

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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.