The vulnerability of the Internet Key Exchange version 1 protocol (IKEv1) in Cisco IOS XE operating systems allows a attacker to induce a service failure.

The vulnerability of the Internet Key Exchange version 1 IKEv1 protocol in Cisco IOS XE operating systems is related to improper handling of undefined values. Exploiting this vulnerability can allow a malicious actor to cause service failures remotely...

The vulnerability of the Internet Key Exchange (IKEv2) key exchange function in Cisco Adaptive Security Appliances (ASA) and Cisco Firepower Threat Defense (FTD) allows a attacker to induce a service failure.

The vulnerability of the Internet Key Exchange IKEv2 key exchange function in Cisco Adaptive Security Appliances ASA and Cisco Firepower Threat Defense FTD is related to memory release errors. Exploiting this vulnerability can allow a malicious actor to cause service interruptions...

The vulnerability of the Internet Key Exchange (IKEv2) key exchange function in Cisco Adaptive Security Appliances (ASA) and Cisco Firepower Threat Defense (FTD), as well as in Cisco IOS and Cisco IOS XE operating systems, allows a attacker to cause a service failure.

The vulnerability of the Internet Key Exchange IKEv2 key exchange function in Cisco Adaptive Security Appliances ASA and Cisco Firepower Threat Defense FTD, as well as in Cisco IOS and Cisco IOS XE operating systems, is related to memory release errors. Exploitation of this vulnerability can allo...

Linux Distros Unpatched Vulnerability : CVE-2022-23094

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Libreswan 4.2 through 4.5 allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via a crafted IKEv1 packet because...

Linux Distros Unpatched Vulnerability : CVE-2019-9894

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A remotely triggerable memory overwrite in RSA key exchange in PuTTY before 0.71 can occur before host key verification. CVE-2019-9894 Note that Nessus relies o...

Linux Distros Unpatched Vulnerability : CVE-2025-30211

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Erlang/OTP is a set of libraries for the Erlang programming language. Prior to versions OTP-27.3.1, 26.2.5.10, and 25.3.2.19, a maliciously formed KEX init...

Linux Distros Unpatched Vulnerability : CVE-2023-5981

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct...

Linux Distros Unpatched Vulnerability : CVE-2023-0361

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypt...

CVE-2025-55297

ESF-IDF is the Espressif Internet of Things IOT Development Framework. The BluFi example bundled in ESP-IDF was vulnerable to memory overflows in two areas: Wi-Fi credential handling and Diffie–Hellman key exchange. This vulnerability is fixed in 5.4.1, 5.3.3, 5.1.6, and 5.0.9...

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-2025-20253

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-2025-20252

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...