Wire · technology
Cisco ASA and FTD Flaw Exploited in the Wild Can Trigger Remote DoS
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Fusion42 · 12 August 2026 · Fusion42 review
A critical vulnerability in Cisco Secure Firewall ASA and FTD software has been actively exploited, allowing unauthenticated attackers to cause remote denial-of-service by sending crafted HTTP requests. Cisco has released patches fixing this flaw impacting multiple ASA and FTD versions with vulnerable VPN configurations.
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◆ ◆ The Wire takeaway
Your network security devices running older Cisco ASA or FTD software are exposed to remote shutdown attacks. Patch immediately or expect service interruptions and high operational risk from attackers exploiting these VPN-related flaws.
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