CVE-2025-20252

Multiple vulnerabilities in the IKEv2 feature of Cisco Secure Firewall ASA Software and Secure FTD Software could allow an unauthenticated, remote attacker to trigger a memory leak, resulting in a DoS condition. These vulnerabilities are due to the improper processing of IKEv2 packets. An attacker could exploit these vulnerabilities by sending crafted IKEv2 packets to an affected device. A successful exploit could allow the attacker to partially exhaust system memory, causing system instability such as being unable to establish new IKEv2 VPN sessions, which requires a manual reboot of the device to recover from this condition.

The following products are affected by CVE-2025-20252 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-20252.

URL	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-ios-dos-DOESHWHy