CVE-2026-12413

An invalidly formatted IKEv2 fragment causes the Libreswan pluto daemon to crash and restart. Continued exploitation would cause a denial of service. The function reassemblev2incomingfragments would ignore unknown outer payloads but still store these in a fixed size array msgdigest.digestPAYLIMIT...

Cisco Firepower Threat Defense (FTD) Software IKEv2 DoS Vulnerabilities (cisco-sa-asaftd-ikev2-dos-eBueGdEG)

According to its self-reported version, Cisco Secure Firewall Threat Defense FTD Software is affected by multiple vulnerabilities. - A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, remote attacker to cause a...

CVE-2026-20049

A vulnerability in the processing of Galois/Counter Mode GCM-encrypted Internet Key Exchange version 2 IKEv2 IPsec traffic of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an authenticated, remote attacker to cause...

PT-2025-52395

Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS versions 11.10.2 through 11.12.4 Update1 WatchGuard Fireware OS versions 12.0 through 12.11.5 WatchGuard Fireware OS versions 2025.1 through 2025.1.3 Description An out-of-bounds write vulnerability exists in the iked...

CVE-2025-20239

CVE-2025-20239 describes an unauthenticated, remote-execution of a memory-leak/DoS in the IKEv2 processing of Cisco IOS, IOS XE, ASA, and FTD. Exploitation via crafted IKEv2 packets can cause IOS/IOS XE devices to reload; ASA/FTD may partially exhaust memory leading to instability and inability t...