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Libssh

18 known vulnerabilities

3
HIGH
10
MEDIUM
5
LOW

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libssh 18
18 CVEs
8.8
CVE-2026-59851

A flaw was found in libssh. On servers with GSSAPIKeyExchange enabled, the gssapi-keyex path does not verify whether the

4.3
CVE-2026-59850

A flaw was found in libssh. If data packets are processed after a channel is closed, channel data callbacks can be invok

3.1
CVE-2026-59849

A flaw was found in libssh. Logic errors in automatic certificate-based public key authentication can cause libssh clien

5.3
CVE-2026-59848

A flaw was found in libssh. A malicious SFTP server can send responses for unknown request IDs that libssh clients keep

5.9
CVE-2026-59847

A flaw was found in libssh. Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can effectively re

3.9
CVE-2026-59846

A flaw was found in libssh. A malicious username expanded through %r in ProxyCommand handling can inject shell metachara

5.3
CVE-2026-59845

A flaw was found in libssh. When ProxyCommand is used, an unchecked fork() failure can be stored as process ID -1; durin

6.5
CVE-2026-59844

A flaw was found in libssh. A remote authenticated client can issue SSH_FXP_READ requests with an arbitrarily large leng

6.5
CVE-2026-59843

A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size in SSH_MSG_CHANNEL_OPEN

3.7
CVE-2026-59842

A flaw was found in libssh. During server-side GSSAPI key exchange, a client-supplied Curve25519 public key shorter than

6.7
CVE-2026-15370

A flaw was found in libssh. During SFTP server directory listing, the longname field is constructed with unsafe concaten

7.8
CVE-2025-14821

A flaw was found in libssh. This vulnerability allows local man-in-the-middle attacks, security downgrades of SSH (Secur

3.1
CVE-2026-0968

A flaw was found in libssh in which a malicious SFTP (SSH File Transfer Protocol) server can exploit this by sending a m

5.5
CVE-2026-0967

A flaw was found in libssh. A remote attacker, by controlling client configuration files or known_hosts files, could cra

8.2
CVE-2026-0966

A flaw was found in libssh. The API function `ssh_get_hexa()` is vulnerable to a denial of service when processing zero-

3.3
CVE-2026-0965

A flaw was found in libssh where it can attempt to open arbitrary files during configuration parsing. A local attacker c

6.3
CVE-2026-0964

A malicious SCP server can send unexpected paths that could make the client application override local files outside of

5.3
CVE-2026-3731

A weakness has been identified in libssh up to 0.11.3. The impacted element is the function sftp_extensions_get_name/sft

Frequently Asked Questions

How many CVEs affect Libssh?

Libssh has 18 CVE records in our database, including 0 critical and 3 high severity vulnerabilities.

What are the most severe Libssh vulnerabilities?

Libssh has 0 critical severity (CVSS 9.0+) and 3 high severity (CVSS 7.0-8.9) vulnerabilities. Review the list above sorted by publication date to find the most recent high-severity issues.

How can I scan for Libssh vulnerabilities?

CyberStrike's AI-powered security agents automatically detect vulnerabilities in Libssh products across your infrastructure. The platform provides continuous pentesting, DAST scanning, and real-time vulnerability monitoring with actionable remediation guidance.

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