28 matches found
CVE-2023-38408
The PKCS#11 feature in ssh-agent within OpenSSH (versions prior to 9.3p2 ) contains an insufficiently trustworthy search path . This flaw allows a remote attacker to achieve remote code execution if a user's agent is forwarded to an attacker-controlled system, as code in /usr/lib may be unsafely ...
CVE-2020-15778
The CVE-2020-15778 entry covers a command-injection flaw in scp within OpenSSH up to version 8.3p1. The vulnerability resides in scp.c toremote, enabling arbitrary command execution when a destination argument contains backtick characters; the vendor notes they intentionally forgo validating anom...
CVE-2017-15906
OpenSSH OpenSSH sftp-server.c contains a write-blocking flaw in readonly mode that can let an attacker create zero-length files. Specifically, the process_open function in sftp-server.c mishandles write operations when in read-only mode, affecting OpenSSH versions prior to 7.6. The vulnerability ...
CVE-2021-36368
OpenSSH CVE-2021-36368 affects OpenSSH before 8.9. If a client uses public-key authentication with agent forwarding but not -oLogLevel=verbose, and a server is silently modified to support None authentication, the user cannot reliably tell if FIDO authentication will confirm the intended connecti...
CVE-2024-6387
CVE-2024-6387 is a remote code-execution vulnerability in OpenSSH’s server (sshd) caused by a race condition in a signal handler that may run after a client fails to authenticate within LoginGraceTime. The issue is exploitable by an unauthenticated, remote attacker on glibc-based Linux systems, p...
CVE-2023-51385
OpenSSH CVE-2023-51385: OS command injection can occur when a username or hostname containing shell metacharacters is used in expansion tokens, e.g., in untrusted repositories. Affected: OpenSSH up to version
CVE-2023-48795
The SSH transport protocol, including OpenSSH (before 9.6), is vulnerable to the Terrapin attack (CVE-2023-48795). This vulnerability allows remote attackers to bypass integrity checks during the handshake phase by exploiting how the SSH Binary Packet Protocol (BPP) handles sequence numbers. The ...
CVE-2016-10708
OpenSSH sshd before 7.4 is vulnerable to a denial of service caused by a NULL pointer dereference when processing an out-of-sequence NEWKEYS message (kex.c/packet.c). This affects the OpenSSH server; exploitation leads to daemon crash as demonstrated by Honggfuzz. Affected products include OpenSS...
CVE-2008-3844
CVE-2008-3844 corresponds to tampered Red Hat OpenSSH packages from August 2008 signed with a Red Hat key. The Trojan-Horse modification was introduced in certain RHEL 4/5 OpenSSH packages and its impact remains unknown; distribution was limited to unofficial channels, with no known official Red ...
CVE-2026-35414
OpenSSH CVE-2026-35414 affects OpenSSH before 10.3, where the authorized_keys principals option can be mishandled when a CA uses comma characters in a multi-principal scenario. Multiple connected advisories (IBM AIX advisory, Debian DLA, AlmaLinux/Almalinux, CloudLinux, and Amazon Linux ALAS entr...
CVE-2023-51767
CVE-2023-51767 — IBM’s connected bulletin confirms a vulnerability mapped to the OpenSSH/OpenSSH-derived issue in OpenSSH up to version 10.0, where row hammer attacks on common DRAM types could enable authentication bypass. Root cause per the bulletin: the integer value of authenticated in mm_ans...
CVE-2026-60002
Summary (CVE-2026-60002): OpenSSH
CVE-2016-1908
OpenSSH CVE-2016-1908 affects the OpenSSH client before 7.2, where cookie generation for untrusted X11 forwarding can be mishandled when the local X server lacks the SECURITY extension. This could allow remote X11 clients to trigger a fallback to trusted forwarding, bypassing intended access cont...
CVE-2026-35385
OpenSSH before 10.3 is affected. When using scp as root with -O (legacy protocol) and without -p, a downloaded file may be installed setuid or setgid, contrary to user expectations. This could enable privilege elevation per the cited advisories. Remediation: upgrade to OpenSSH 10.3p1 or later (as...
CVE-2007-2768
OpenSSH, when using OPIE (One-Time Passwords in Everything) for PAM, can leak whether a target user exists by returning different responses if the account is configured for OTP. This is described for CVE-2007-2768 (OpenSSH 4.6 and earlier) and is related to CVE-2007-2243 in the IBM bulletin, whic...
CVE-2026-35388
OpenSSH (before 10.3) is affected by a vulnerability in proxy-mode multiplexing where the system omits connection multiplexing confirmation for multiplexing sessions. The issue is tied to OpenSSH’s proxy-mode multiplexing behavior and is described as a flaw in the handling of multiplexing confirm...
CVE-2026-35387
OpenSSH before 10.3 is affected by CVE-2026-35387: when listing any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms, the client/server may misinterpret this as enabling all ECDSA algorithms. The result is the unintended use of ECDSA keys, with confidentiality impact lis...
CVE-2026-60000
CVE-2026-60000 affects OpenSSH sshd prior to 10.4. The vulnerability arises from mishandling MaxAuthTries for GSSAPIAuthentication, enabling a remote attacker to cause denial of service via resource exhaustion from excessive authentication attempts. Impact is a server-wide DoS (availability loss)...
CVE-2026-59995
OpenSSH sftp (client) vulnerability CVE-2026-59995 affects OpenSSH versions older than 10.4. The issue arises when using SFTP with an attacker-controlled server and the command "sftp server:/path .", where the client does not properly constrain the location where downloaded files can be placed. T...
CVE-2026-73282
OpenSSH CVE-2026-73282 affects OpenSSH prior to 10.5. The issue is a use-after-free in realloc data that can occur when a specific pair of remote-forwarding operations are concurrent. The CVSS vector indicates network attack with high complexity and no privileges required, but exploitation status...
CVE-2026-59999
CVE-2026-59999 affects OpenSSH sshd prior to 10.4, where the intended precedence of DisableForwarding=yes over PermitTunnel=yes did not hold. The available documents confirm the root cause is an ordering/precedence bug in sshd, but do not provide concrete details on affected product versions beyo...
CVE-2026-73281
CVE-2026-73281 affects the ssh-agent component of OpenSSH prior to version 10.5. The issue arises from a misinteraction between agent locking and the [email protected] extension, allowing some operations that were intended to be local to occur remotely (e.g., adding tokens or using keys). ...
CVE-2026-59997
The CVE affects OpenSSH’s internal-sftp helper invoked by sshd, where the process only parses the first 9 command-line arguments. This is tied to OpenSSH before version 10.4. According to the description, this could undermine intended security properties of an SFTP connection if a later argument ...
CVE-2026-59996
OpenSSH SCP flaw: OpenSSH versions before 10.4 allow a file to be placed in the parent directory of the target when copying between two remote destinations. Root cause is described in the OpenSSH release notes; remediation is to upgrade to OpenSSH 10.4p1 or later (fixed in 10.4p1). No exploit det...
CVE-2003-0190
CVE-2003-0190 affects OpenSSH-portable/OpenSSH 3.6.1p1 and earlier with PAM enabled. The vulnerability is a timing side‑channel: when a login attempts with a non-existent username, an error is returned immediately, allowing remote attackers to determine valid usernames. This is an information dis...
CVE-2026-59998
OpenSSH sshd (CVE-2026-59998) affects builds before 10.4. The issue is an undocumented security-relevant behavior where GSSAPIStrictAcceptorCheck has no value when the server runs in Windows Active Directory. CVSS v3.1 base score 4.8 (Medium) and impact on confidentiality/integrity (Low) with net...
CVE-2026-73283
In OpenSSH sshd, prior to version 10.5, the restrict keyword in authorized_keys was not correctly limited to tunnel forwarding as intended. This CVE (CVE-2026-73283) affects the ability of the restrict option to apply to tunnel forwarding, potentially expanding the execution context for restricte...