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CVE-2024-20402

Cisco Adaptive Security Appliance (ASA) Software - SSL VPN

Cisco CVSS 8.6 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in the SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to a logic error in memory management when handling SSL VPN connections."

Operational Audit Arsenal

Target Type Firmware Image
Target Asset Cisco Adaptive Security Appliance (ASA) Software
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-2024-20402: Unauthenticated DoS vulnerability in Cisco ASA and FTD SSL VPN, requiring firmware update to prevent unexpected device reloads.

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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.