CVE-2026-20349
Related Intelligence (3)
Cisco ASA and FTD Flaw Exploited in the Wild Can Trigger Remote DoS
Cisco has warned that a new vulnerability impacting Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software has been exploited in the wild. The high-severity flaw, tracked as CVE-2026-20349 (CVSS score: 8.6), is a case of insufficient error checking when processing HTTP requests that could allow an unauthenticated, remote attacker to trigger
Cisco Patches Firewall Zero-Day Exploited for DoS Attacks
CVE-2026-20349 can be exploited remotely without authentication against Secure Firewall ASA and FTD devices. The post Cisco Patches Firewall Zero-Day Exploited for DoS Attacks appeared first on SecurityWeek .
CISA KEV: Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) — Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection Vulnerability
Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) contain a heap inspection vulnerability that could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition.