openssh: OpenSSH sshd: Security bypass due to incorrect handling of forwarding and tunneling options

A flaw was found in sshd, the OpenSSH server daemon. When DisableForwarding=yes is configured to prevent network traffic forwarding, it incorrectly fails to take precedence over PermitTunnel=yes. This allows a remote attacker to bypass intended security restrictions and establish a tunnel,...

CVE-2026-59999

A flaw was found in sshd, the OpenSSH server daemon. When DisableForwarding=yes is configured to prevent network traffic forwarding, it incorrectly fails to take precedence over PermitTunnel=yes. This allows a remote attacker to bypass intended security restrictions and establish a tunnel,...

CVE-2026-59999

In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not...

PT-2026-56292

Name of the Vulnerable Software and Affected Versions OpenSSH versions prior to 10.4 Description The sshd component does not consistently adhere to the minimum authentication delay, which is a mechanism designed to slow down authentication attempts to prevent brute-force attacks. Recommendations...

EUVD-2014-9103

Malware in sbrugna...

EUVD-2020-27071

Malware in sbrugna...

EUVD-2019-17172

Malware in sbrugna...

EUVD-2023-57909

Malicious code in bioql PyPI...

[SECURITY] Fedora 41 Update: openssh-9.9p1-4.fc41

SSH Secure SHell is a program for logging into and executing commands on a remote machine. SSH is intended to replace rlogin and rsh, and to provide secure encrypted communications between two untrusted hosts over an insecure network. X11 connections and arbitrary TCP/IP ports can also be forward...

OpenSSH server (sshd) 9.8p1 - Race Condition

Exploit Title : OpenSSH server sshd 9.8p1 - Race Condition Author : Milad Karimi Ex3ptionaL Date : 2025-04-16 Description: Targets a signal handler race condition in OpenSSH's server sshd on glibc-based Linux systems. It exploits a vulnerability where the SIGALRM handler calls async-signal-unsafe...

CVE-2023-5616

In Ubuntu, gnome-control-center did not properly reflect SSH remote login status when the system was configured to use systemd socket activation for openssh-server. This could unknowingly leave the local machine exposed to remote SSH access contrary to expectation of the user...

DEBIAN-CVE-2023-5616

In Ubuntu, gnome-control-center did not properly reflect SSH remote login status when the system was configured to use systemd socket activation for openssh-server. This could unknowingly leave the local machine exposed to remote SSH access contrary to expectation of the user...

CVE-2023-5616

In Ubuntu, gnome-control-center did not properly reflect SSH remote login status when the system was configured to use systemd socket activation for openssh-server. This could unknowingly leave the local machine exposed to remote SSH access contrary to expectation of the user...

Expected Behavior Violation

Overview Affected versions of this package are vulnerable to Expected Behavior Violation due to the behavior of the DisableForwarding directive in sshd8, which fails to disable X11 forwarding and agent forwarding by default. An attacker can bypass intended security restrictions. Remediation A fix...

VulnCheck KEV: CVE-2024-6409

A race condition vulnerability was discovered in how signals are handled by OpenSSH's server sshd. If a remote attacker does not authenticate within a set time period, then sshd's SIGALRM handler is called asynchronously. However, this signal handler calls various functions that are not...

The vulnerability of the OpenSSH server, related to uncontrolled resource consumption, allows a hacker to cause a service failure.

The vulnerability of the OpenSSH server security tool is related to an uncontrolled resource consumption. Exploiting this vulnerability can allow a malicious actor to cause service interruptions remotely...

Qualys TRU Discovers Two Vulnerabilities in OpenSSH: CVE-2025-26465 & CVE-2025-26466

The Qualys Threat Research Unit TRU has identified two vulnerabilities in OpenSSH. The first, tracked as CVE-2025-26465, allows an active machine-in-the-middle attack on the OpenSSH client when the VerifyHostKeyDNS option is enabled. The second, CVE-2025-26466, affects both the OpenSSH client and...

Huawei EulerOS: Security Advisory for openssh (EulerOS-SA-2024-2511)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SSH Username Enumeration

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'SSH Username Enumeration', 'Description' = %q This module uses a malformed packet or timing attack to enumerate users on an OpenSSH server. The...

Huawei EulerOS: Security Advisory for openssh (EulerOS-SA-2024-2184)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...