Linux Distros Unpatched Vulnerability : CVE-2016-8858

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The kexinputkexinit function in kex.c in OpenSSH 6.x and 7.x through 7.3 allows remote attackers to cause a denial of service memory consumption by sending many...

Linux Distros Unpatched Vulnerability : CVE-2020-1763

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw...

CVE-2025-20224

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...

CVE-2025-20239

A vulnerability in the Internet Key Exchange Version 2 IKEv2 feature of Cisco IOS Software, IOS XE Software, 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, resultin...

CVE-2025-20252

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...

CVE-2025-20254

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...

CVE-2025-20253

A vulnerability in the IKEv2 feature of Cisco IOS Software, IOS XE Software, Secure Firewall ASA Software, and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a DoS condition. This vulnerability is due to the improper processing of...

CVE-2025-20225

A vulnerability in the Internet Key Exchange Version 2 IKEv2 feature of Cisco IOS Software, IOS XE Software, 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, resultin...

Vulnerabilities fixed in Cisco Secure Firewall Software

Cisco has fixed multiple vulnerabilities in Cisco Secure Firewall Software including ASA and FTD. The vulnerabilities are in the way Cisco Secure Firewall handles key exchange IKEv2, with this it is possible for an unauthenticated attacker to perform a denial-of-service attack. The vulnerability...

CVE-2025-20252

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...

CVE-2025-20253

A vulnerability in the IKEv2 feature of Cisco IOS Software, IOS XE Software, Secure Firewall ASA Software, and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a DoS condition. This vulnerability is due to the improper processing of...

CVE-2025-20239

A vulnerability in the Internet Key Exchange Version 2 IKEv2 feature of Cisco IOS Software, IOS XE Software, 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, resultin...

CVE-2025-20254

CVE-2025-20254 affects Cisco Secure Firewall ASA/FTD IKEv2 handling. The vulnerability stems from improper parsing of IKEv2 packets in the IKEv2 module, enabling an unauthenticated, remote attacker to trigger a memory leak and cause a DoS by continuously sending crafted IKEv2 packets, partially e...

CVE-2025-20254

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...

CVE-2025-20254

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...

CVE-2025-20253 Cisco IOS, IOS XE, Secure Firewall Adaptive Security Appliance, and Secure Firewall Threat Defense Software IKEv2 Denial of Service Vulnerability

A vulnerability in the IKEv2 feature of Cisco IOS Software, IOS XE Software, Secure Firewall ASA Software, and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a DoS condition. This vulnerability is due to the improper processing of...

CVE-2025-20253 Cisco IOS, IOS XE, Secure Firewall Adaptive Security Appliance, and Secure Firewall Threat Defense Software IKEv2 Denial of Service Vulnerability

A vulnerability in the IKEv2 feature of Cisco IOS Software, IOS XE Software, Secure Firewall ASA Software, and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a DoS condition. This vulnerability is due to the improper processing of...

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. ...

CVE-2025-20252

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...

CVE-2025-20252

The CVE-2025-20252 entry concerns Cisco Secure Firewall ASA/FTD (IKEv2) with memory leak from improper IKEv2 packet parsing. Affected: Cisco ASA/FTD software; vulnerability arises from IKEv2 parsing, allowing unauthenticated remote attacker to exhaust memory and cause DoS (system instability; new...