CVE-2025-20253

CVE-2025-20253 affects Cisco IOS, IOS XE, Secure Firewall ASA and Secure FTD Software. Root cause: improper processing of IKEv2 packets that can cause an infinite loop, exhaust resources, and force a device reload (DoS). Attack vector: unauthenticated remote attacker sends crafted IKEv2 packets. ...