Cisco · Secure Firewall ASA / Secure FTD
Updated November 6, 2026
An unchecked return value leads to a NULL pointer dereference, allowing a remote unauthenticated attacker to trigger a device reload. The resulting denial‑of‑service can interrupt network security monitoring.
Temporary loss of firewall protection, potential exposure of internal assets during the reboot window, and operational downtime.
Install Cisco’s firmware update that adds proper return‑value checks; schedule a maintenance window to apply the patch and verify stability.
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