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Cisco ASA and FTD Flaw Exploited in the Wild Can Trigger Remote DoS

The Hacker News
· August 12, 2026

AI summary

Cisco has issued a warning about a vulnerability in its Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software that is being exploited. The flaw allows an unauthenticated remote attacker to trigger a denial of service. The vulnerability is considered high-severity with a CVSS score of 8.6. It occurs due to insufficient error checking when processing HTTP requests. This vulnerability has been assigned the identifier CVE-2026-20349.

Vulnerabilities mentioned

Read the full article at The Hacker Newsthehackernews.com/2026/08/cisco-asa-and-ftd-flaw-exploited-in.html

This is an AI-generated brief aggregated by HackerFeeds for convenience and grounded in the source’s own summary; the related CVE, threat-group and country data is from HackerFeeds’ own indexes. The original article is the authoritative source — all rights belong to The Hacker News.