INCIDENT EVIDENCE GRAPH

Cisco warns of ASA and FTD VPN flaw exploited to crash devices

2026-08-11T19:45:31Z

Cisco is warning that a high-severity denial-of-service vulnerability in Secure Firewall ASA and Threat Defense (FTD) software is being actively exploited in attacks to remotely crash affected devices. [...]

• Victim: affected Secure Firewall ASA and Threat Defense (FTD) devices
• Method: Remote exploitation of a high-severity denial-of-service vulnerability to crash affected devices

Primary evidence

1. Cisco warns of ASA and FTD VPN flaw exploited to crash devices

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