CISCO PATCHES FIREWALL ZERO-DAY EXPLOITED FOR DOS ATTACKS

Summary from the TLDR InfoSec newsletter

Cisco released emergency hotfixes for an actively exploited zero-day (CVE-2026-20349) that allows unauthenticated attackers to crash Secure Firewall ASA and FTD appliances via crafted HTTP requests to the Remote Access SSL VPN service, prompting a CISA mandate to patch by August 14.