Executive Risk Summary
"A vulnerability in the TLS 1.3 implementation for a specific cipher in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker to consume resources, causing a denial of service (DoS) condition. The device must be reloaded to clear this condition, which could significantly impact network operations and security."
Operational Audit Arsenal
Target Type Firmware Image
Target Asset Cisco Secure Firewall 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-2025-20127: Cisco Secure Firewall ASA Software TLS 1.3 DoS Vulnerability - Potential for significant network disruption, requires immediate attention and patching.
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.