Cisco Releases Fixes for Actively Exploited High-Severity Firewall Vulnerability

Cisco has issued hot fixes for a high-severity denial-of-service vulnerability, CVE-2026-20349, affecting its Secure Firewall ASA and FTD Software. This flaw is currently being exploited by unauthenticated attackers using specially crafted HTTP requests to trigger unexpected reloads in Remote Access SSL VPN services. CISA has added this vulnerability to its Known Exploited Vulnerabilities catalog, underscoring the urgency for organizations to apply the patches to prevent service disruptions.