CVE-2025-20224Medium· 5.8▾ SunlitA vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker t…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 31.9 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Sep 18.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.7%
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a memory leak, resulting in a denial of service (DoS) condition.
This vulnerability is due to improper parsing of IKEv2 packets. An attacker could exploit this vulnerability by sending a continuous stream of crafted IKEv2 packets to an affected device. A successful exploit could allow the attacker to partially exhaust system memory, causing system instability like being unable to establish new IKEv2 VPN sessions. A manual reboot of the device is required to recover from this condition.
secure_firewall_threat_defense = 6.2.3secure_firewall_threat_defense = 6.2.3.1secure_firewall_threat_defense = 6.2.3.2secure_firewall_threat_defense = 6.2.3.3secure_firewall_threat_defense = 6.2.3.4secure_firewall_threat_defense = 6.2.3.5secure_firewall_threat_defense = 6.2.3.6secure_firewall_threat_defense = 6.2.3.7secure_firewall_threat_defense = 6.2.3.8secure_firewall_threat_defense = 6.2.3.9secure_firewall_threat_defense = 6.2.3.10secure_firewall_threat_defense = 6.2.3.11secure_firewall_threat_defense = 6.2.3.12secure_firewall_threat_defense = 6.2.3.13secure_firewall_threat_defense = 6.2.3.14secure_firewall_threat_defense = 6.2.3.15secure_firewall_threat_defense = 6.2.3.16secure_firewall_threat_defense = 6.2.3.17secure_firewall_threat_defense = 6.2.3.18secure_firewall_threat_defense = 6.4.0secure_firewall_threat_defense = 6.4.0.1secure_firewall_threat_defense = 6.4.0.2secure_firewall_threat_defense = 6.4.0.3secure_firewall_threat_defense = 6.4.0.4secure_firewall_threat_defense = 6.4.0.5secure_firewall_threat_defense = 6.4.0.6secure_firewall_threat_defense = 6.4.0.7secure_firewall_threat_defense = 6.4.0.8secure_firewall_threat_defense = 6.4.0.9secure_firewall_threat_defense = 6.4.0.10secure_firewall_threat_defense = 6.4.0.11secure_firewall_threat_defense = 6.4.0.12secure_firewall_threat_defense = 6.4.0.13secure_firewall_threat_defense = 6.4.0.14secure_firewall_threat_defense = 6.4.0.15secure_firewall_threat_defense = 6.4.0.16secure_firewall_threat_defense = 6.4.0.17secure_firewall_threat_defense = 6.4.0.18secure_firewall_threat_defense = 6.6.0secure_firewall_threat_defense = 6.6.0.1secure_firewall_threat_defense = 6.6.1secure_firewall_threat_defense = 6.6.3secure_firewall_threat_defense = 6.6.4secure_firewall_threat_defense = 6.6.5secure_firewall_threat_defense = 6.6.5.1secure_firewall_threat_defense = 6.6.5.2secure_firewall_threat_defense = 6.6.7secure_firewall_threat_defense = 6.6.7.1secure_firewall_threat_defense = 6.6.7.2secure_firewall_threat_defense = 7.0.0secure_firewall_threat_defense = 7.0.0.1secure_firewall_threat_defense = 7.0.1secure_firewall_threat_defense = 7.0.1.1secure_firewall_threat_defense = 7.0.2secure_firewall_threat_defense = 7.0.2.1secure_firewall_threat_defense = 7.0.3secure_firewall_threat_defense = 7.0.4secure_firewall_threat_defense = 7.0.5secure_firewall_threat_defense = 7.0.6secure_firewall_threat_defense = 7.0.6.1secure_firewall_threat_defense = 7.0.6.2secure_firewall_threat_defense = 7.0.6.3secure_firewall_threat_defense = 7.0.7secure_firewall_threat_defense = 7.1.0secure_firewall_threat_defense = 7.1.0.1secure_firewall_threat_defense = 7.1.0.2secure_firewall_threat_defense = 7.1.0.3secure_firewall_threat_defense = 7.2.0secure_firewall_threat_defense = 7.2.0.1secure_firewall_threat_defense = 7.2.1secure_firewall_threat_defense = 7.2.2secure_firewall_threat_defense = 7.2.3secure_firewall_threat_defense = 7.2.4secure_firewall_threat_defense = 7.2.4.1secure_firewall_threat_defense = 7.2.5secure_firewall_threat_defense = 7.2.5.1secure_firewall_threat_defense = 7.2.5.2secure_firewall_threat_defense = 7.2.6secure_firewall_threat_defense = 7.2.7secure_firewall_threat_defense = 7.2.8secure_firewall_threat_defense = 7.2.8.1secure_firewall_threat_defense = 7.2.9secure_firewall_threat_defense = 7.3.0secure_firewall_threat_defense = 7.3.1secure_firewall_threat_defense = 7.3.1.1secure_firewall_threat_defense = 7.3.1.2secure_firewall_threat_defense = 7.4.0secure_firewall_threat_defense = 7.4.1secure_firewall_threat_defense = 7.4.1.1secure_firewall_threat_defense = 7.4.2secure_firewall_threat_defense = 7.4.2.1secure_firewall_threat_defense = 7.4.2.2secure_firewall_threat_defense = 7.6.0secure_firewall_threat_defense = 7.7.0adaptive_security_appliance_software = 9.8.1adaptive_security_appliance_software = 9.8.1.5adaptive_security_appliance_software = 9.8.1.7adaptive_security_appliance_software = 9.8.2adaptive_security_appliance_software = 9.8.2.8adaptive_security_appliance_software = 9.8.2.14Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-20012High· 8.6A vulnerability in the Internet Key Exchange version 2 (IKEv2) feature of Cisco IOS Software, Cisco IOS XE Software, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, and Cisco Secure Firewall Threat Defense (FTD) Softwar…
CVE-2020-3373High· 8.6A vulnerability in the IP fragment-handling implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a memory leak on an…
CVE-2020-3195High· 7.5A vulnerability in the Open Shortest Path First (OSPF) implementation in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a memory…
CVE-2020-3189High· 8.6A vulnerability in the VPN System Logging functionality for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a memory leak that can deplete system memory over time, which can cause un…
CVE-2019-1708High· 8.6A vulnerability in the Internet Key Exchange Version 2 Mobility and Multihoming Protocol (MOBIKE) feature for the Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthent…
CVE-2026-20222High· 7.4A vulnerability in the EIGRP implementation in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to cause the device…