importantSYS.SOURCE: The Hacker News• 2026-08-12T11:45:58+05:30

Cisco ASA and FTD Vulnerability CVE-2026-20349 Exploited in the Wild for Remote DoS Attacks

#cisco #vulnerability #dos #network security

Cisco has identified a high-severity vulnerability (CVE-2026-20349) in ASA and FTD software that allows remote attackers to trigger denial-of-service conditions through crafted HTTP requests. The flaw affects multiple versions of Cisco's firewall products and has been actively exploited in the wild with no available workarounds.

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

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