Cisco Secure Firewall SSL VPN DoS Flaw (CVE-2026-76418) Added to CISA KEV Catalog with November 1 Due Date

The Cybersecurity and Infrastructure Security Agency (CISA) has added a high-severity denial-of-service vulnerability (CVE-2026-76418) in Cisco Secure Firewall ASA and FTD Software to its Known Exploited Vulnerabilities (KEV) catalog. The flaw, which allows an unauthenticated remote attacker to cause a firewall reload via a crafted SSL VPN request, has a federal due date of November 1, 2026, for remediation.