USN-8799-1 libssh2 vulnerabilities

It was discovered that libssh2 incorrectly handled certain publickey subsystem attributes. A remote attacker controlling a malicious SSH server could use this issue to cause a denial of service or possibly execute arbitrary code. CVE-2026-58050 It was discovered that libssh2 did not properly...

EulerOS Virtualization 2.10.0 : libssh2 (EulerOS-SA-2026-3872)

According to the versions of the libssh2 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : libssh2 through 1.11.1 reads an attacker-controlled 32-bit attribute count from a publickey-subsystem response and uses it in the...

CVE-2026-27557 Path Traversal in /index.php/view_uploaded_iodd_file

An unauthenticated remote attacker can exploit a path traversal vulnerability in the /index.php/viewuploadedioddfile endpoint allowing the SSH server's private keys to be read...

EUVD-2026-80240

An unauthenticated remote attacker can exploit a path traversal vulnerability in the /index.php/viewuploadedioddfile endpoint allowing the SSH server's private keys to be read...

The vulnerability of the SSH server of the RouterOS operating system in MikroTik allows a hacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the SSH server on the RouterOS operating system of MikroTik is related to the incorrect implementation of the sequence of actions to be performed. Exploiting this vulnerability allows a remote attacker to compromise the confidentiality, integrity, and accessibility of the...

USN-8722-1: libssh2 vulnerabilities

It was discovered that libssh2 incorrectly handled certain SFTP server responses. A remote attacker controlling an SSH server could use this issue to cause libssh2 to crash or possibly execute arbitrary code. CVE-2026-66032 It was discovered that libssh2 incorrectly handled AES-GCM cipher...

libssh2: libssh2: Information disclosure and potential arbitrary code execution via heap out-of-bounds read

A missing bounds check in the libssh2 publickey subsystem allows malicious SSH servers to trigger a client-side out-of-bounds read, leaking heap pointers that could enable security bypasses, denial of service, or code execution...

libssh2: libssh2: Arbitrary code execution via double-free in SFTP session

A flaw was found in libssh2. A malicious SSH Secure Shell server can exploit a double-free vulnerability in the sftpopen function. This flaw allows the server to corrupt the heap memory of an authenticated client when it opens an SFTP SSH File Transfer Protocol session. This heap corruption can...

[SECURITY] Fedora 43 Update: openssh-10.0p1-12.fc43

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...

GHSA-2WXC-X7RJ-HG8F asyncssh has SCP Path Traversal to Arbitrary File Write

| | | |---|---| | Product | asyncssh all versions through 2.23.0 | | Related | CVE-2019-6111 same class in OpenSSH | | Fix | AsyncSSH 2.23.1 | A malicious SSH server can write arbitrary files on the asyncssh SCP client's filesystem by sending filenames containing ../ traversal sequences. The SCP...

OESA-2026-3479 libssh2 security update

libssh2 is a library implementing the SSH2 protocol as defined by Internet Drafts: SECSH-TRANS22, SECSH-USERAUTH25, SECSH-CONNECTION23, SECSH-ARCH20, SECSH-FILEXFER06, SECSH-DHGEX04, and SECSH-NUMBERS10. Security Fixes: libssh2 through 1.11.1, fixed in commit 2dae302, contains an out-of-bounds he...

CVE-2026-24185

NVIDIA NVOS for network switches contains a vulnerability in the secure shell SSH server configuration component while PKA-only mode is enabled, where an administrator could inadvertently enable an alternative authentication path. If best practices for replacing the default password as recommende...

CVE-2026-24185

NVIDIA NVOS for network switches contains a vulnerability in the secure shell SSH server configuration component while PKA-only mode is enabled, where an administrator could inadvertently enable an alternative authentication path. If best practices for replacing the default password as recommende...

CVE-2026-24185

NVIDIA NVOS for network switches contains a vulnerability in the secure shell SSH server configuration component while PKA-only mode is enabled, where an administrator could inadvertently enable an alternative authentication path. If best practices for replacing the default password as recommende...

CVE-2026-24185: Authentication Bypass Using an Alternate Path or Channel

NVIDIA NVOS for network switches contains a vulnerability in the secure shell SSH server configuration component while PKA-only mode is enabled, where an administrator could inadvertently enable an alternative authentication path. If best practices for replacing the default password as recommende...

PT-2026-77258

NVIDIA NVOS for network switches contains a vulnerability in the secure shell SSH server configuration component while PKA-only mode is enabled, where an administrator could inadvertently enable an alternative authentication path. If best practices for replacing the default password as recommende...

CVE-2026-73489

Summary: CVE-2026-73489 affects russh (Rust SSH library) prior to 0.62.4. An authenticated SSH client can trigger a denial-of-service by sending a pty-req channel request with more than 130 terminal-mode records. The parser uses a fixed 130-entry array for terminal modes but increments the index ...

CVE-2026-73489

Russh is a Rust SSH client & server library. Prior to 0.62.4, an authenticated SSH client can cause a denial of service by sending a pty-req channel request with more than 130 terminal-mode records. The parser in russh/src/server/encrypted.rs stores terminal modes in a fixed 130-entry...

libssh2: libssh2: Heap buffer overflow via integer overflow in publickey attribute allocation

A flaw in libssh2 allows a malicious SSH server to trigger a memory overflow by sending a manipulated attribute count. This can cause the connecting client to crash or allow unauthorized code execution...

PT-2026-71343

Name of the Vulnerable Software and Affected Versions Russh versions prior to 0.62.4 Description An unauthenticated SSH client can trigger a denial of service by sending an SSH MSG KEX ECDH INIT message containing a 32-byte all-zero Q C value. The Curve25519Kex::server dh function in...