Siemens SCALANCE X-200RNA Switch Devices Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2016-0778)

The 1 roamingread and 2 roamingwrite functions in roamingcommon.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2, when certain proxy and forward options are enabled, do not properly maintain connection file descriptors, which allows remote servers to cause a denial of service heap-based...

Siemens SCALANCE X-200RNA Switch Devices Exposure of Sensitive Information to an Unauthorized Actor (CVE-2016-6210)

sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is...

Amazon Linux 2 : openssh (ALAS-2025-2769)

The version of openssh installed on the remote host is prior to 7.4p1-22. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2025-2769 advisory. A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed ...

ROS-20250307-13

A vulnerability in the VerifyHostKeyDNS component of the OpenSSH cryptographic protection tool is related to flaws in error handling during host key verification. in error handling during host key verification. Exploitation of the vulnerability could allow an attacker, acting remotely, to conduct...

Medium: openssh

Issue Overview: A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying...

Medium: openssh

Issue Overview: A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying...

Linux Distros Unpatched Vulnerability : CVE-2018-15473

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containin...

CVE-2025-26466

A flaw was found in the OpenSSH package. For each ping packet the SSH server receives, a pong packet is allocated in a memory buffer and stored in a queue of packages. It is only freed when the server/client key exchange has finished. A malicious client may keep sending such packages, leading to ...

OpenSSH 资源管理错误漏洞

OpenSSH OpenBSD Secure Shell is a set of connection tools for secure access to remote computers from the Canadian OpenBSD Project Group. The tools are an open source implementation of the SSH protocol and support encryption of all transmissions, effectively blocking eavesdropping, connection...

CBL Mariner 2.0 Security Update: openssh (CVE-2025-26465)

The version of openssh installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-26465 advisory. - A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle...

CVE-2025-26465 affecting package openssh for versions less than 8.9p1-7

CVE-2025-26465 affecting package openssh for versions less than 8.9p1-7. A patched version of the package is available...

SUSE SLES12 Security Update : openssh (SUSE-SU-2025:0659-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2025:0659-1 advisory. - CVE-2025-26465: Fixed a MitM attack against OpenSSH's VerifyHostKeyDNS-enabled client bsc1237040. - Add a s390 specific ioctl for ECC hardware suppor...

Siemens SIMATIC and SCALANCE Devices OS Command Injection (CVE-2023-51385)

In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or...

CentOS 9 : openssh-8.7p1-45.el9

The remote CentOS Linux 9 host has packages installed that are affected by a vulnerability as referenced in the openssh-8.7p1-45.el9 build changelog. - A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious...

Fedora 41 : openssh (2025-18cb3f852d)

The remote Fedora 41 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-18cb3f852d advisory. Fix regression of Match directive processing Tenable has extracted the preceding description block directly from the Fedora security advisory. Note that Ness...

OpenSSH < 9.9p2 DoS

The version of OpenSSH installed on the remote host is prior to 9.9p2. It is, therefore, affected by a vulnerability as referenced in the release-9.9p2 advisory. sshd8 in OpenSSH versions 9.5p1 to 9.9p1 inclusive is vulnerable to a memory/CPU denial-of-service related to the handling of SSH2MSGPI...

OpenSSH < 9.9p2 MitM

The version of OpenSSH installed on the remote host is prior to 9.9p2. It is, therefore, affected by a man in the middle MITM vulnerability. ssh1 in OpenSSH versions 6.8p1 to 9.9p1 inclusive contained a logic error that allowed an on-path attacker a.k.a MITM to impersonate any server when the...

CVE-2025-26465

A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying the host key. Fo...

CVE-2025-26465 Openssh: machine-in-the-middle attack if verifyhostkeydns is enabled

A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying the host key. Fo...

CVE-2025-26465 Openssh: machine-in-the-middle attack if verifyhostkeydns is enabled

A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying the host key. Fo...