EUVD-2026-38413

A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This is possible by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. A successful attack ca...

EUVD-2026-38412

A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in the Diffie-Hellman Group Exchange DH-GEX client path. This occurs during FIPS Federal Information Processing Standards mode known-group validation when the client processes attacker-controlled DH-GEX...

CVE-2026-55654

CVE-2026-55654 describes a heap out-of-bounds read in OpenSSH during GSSAPI indicator cleanup when a trailing NULL termination is missing in the auth-indicators array. A remote attacker in configurations using GSSAPI authentication with Kerberos could trigger a crash/abort in the SSH authenticati...

CVE-2026-55655

OpenSSH on Linux clients is affected by CVE-2026-55655. The issue allows a local unprivileged attacker to hijack client-side X11 forwarding connections by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. The attack can compr...

CVE-2026-55653

CVE-2026-55653 affects OpenSSH and describes a double-free in the DH-GEX client path during FIPS known-group validation, allowing a malicious SSH server to terminate the client process and cause a Denial of Service. The issue is tied to processing attacker-controlled DH-GEX group parameters and i...

ROOT-OS-DEBIAN-12-CVE-2023-51767 CVE-2023-51767 in rootio-openssh - Patched by Root

Root has patched CVE-2023-51767 in the rootio-openssh package for Root:Debian:12. Multiple fixed versions available...

Security Bulletin: OpenSSH client bug (CVE-2016-0777 and CVE-2016-0778)

Question Security Bulletin: OpenSSH client bug CVE-2016-0777 and CVE-2016-0778 "Business Unit":"code":"BU059","label":"IBM Software w/o TPS","Product":"code":"SS8NDZ","label":"IBM Aspera","Component":"","Platform":"code":"PF025","label":"Platform Independent","Version":"All...

Critical: Red Hat Security Advisory: OpenShift Container Platform 4.18.44 bug fix and security update

Red Hat OpenShift Container Platform release 4.18.44 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.18. Red Hat Product Security has rated this update as having a...

ShellShock - Remote Code Execution

GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the modcgi and modcg...

SUSE SLED15 / SLES15 Security Update : openssh (SUSE-SU-2026:2371-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2371-1 advisory. This update for openssh fixes the following issues - CVE-2026-3497: information disclosure or denial of servic...

SUSE SLES15 Security Update : openssh (SUSE-SU-2026:2375-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2375-1 advisory. This update for openssh fixes the following issues - CVE-2026-3497: information disclosure or denial of service due to uninitialize...

China-Linked Hackers Backdoored Linux Login Software to Hide for Nearly a Decade

Instead of hiding on the laptops and servers defenders watch most closely, a China-nexus group spent close to a decade hidden inside the Linux login system itself. Sygnia, which tracks the group as Velvet Ant , says it backdoored the PAM and OpenSSH components that decide who is allowed to sign i...

EulerOS Virtualization 2.13.0 : openssh (EulerOS-SA-2026-2411)

According to the versions of the openssh packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : OpenSSH before 10.3 mishandles the authorizedkeys principals option in uncommon scenarios involving a principals list in conjuncti...

Security update for openssh

This update for openssh fixes the following issues CVE-2026-3497: information disclosure or denial of service due to uninitialized variables bsc1259642. CVE-2026-35385: a file downloaded by scp may be installed setuid or setgid bsc1261427. CVE-2026-35388: omitted connection multiplexing...

Security update for openssh

This update for openssh fixes the following issues CVE-2026-3497: information disclosure or denial of service due to uninitialized variables bsc1259642. CVE-2026-35385: a file downloaded by scp may be installed setuid or setgid bsc1261427. CVE-2026-35388: omitted connection multiplexing...

RHSA-2026:25063 Red Hat Security Advisory: openssh security update

Bulletin has no description...

MGASA-2026-0193 Updated openssh packages fix security vulnerabilities

In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' expectations, if the download is performed as root with -O legacy scp protocol and without -p preserve mode. CVE-2026-35385 In OpenSSH before 10.3, command execution can occur vi...

RHEL 6 : openssh (RHSA-2026:25063)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:25063 advisory. OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary...

EulerOS 2.0 SP13 : openssh (EulerOS-SA-2026-2305)

According to the versions of the openssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : OpenSSH before 10.3 mishandles the authorizedkeys principals option in uncommon scenarios involving a principals list in conjunction with a...

EulerOS 2.0 SP13 : openssh (EulerOS-SA-2026-2348)

According to the versions of the openssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : OpenSSH before 10.3 mishandles the authorizedkeys principals option in uncommon scenarios involving a principals list in conjunction with a...