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libssh2 — security advisories

6 advisorieslatest 2026-07-03⚡ RSS feed

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[UPDATE] [high] libssh2: Multiple vulnerabilities

highCVE-2026-55200 CVE-2026-55199cert-bund2026-07-03

DSA-6365-1 libssh2 - security update

unknownCVE-2025-15661 CVE-2026-7598 CVE-2026-55199 CVE-2026-55200debian2026-06-25

CVE-2026-58051: libssh2 - Free of Uninitialized Pointer in publickey List Cleanup

mediumCVSS 6.5CVE-2026-58051msrc2026-06-09

CVE-2026-55200: libssh2 - Out-of-Bounds Write via Unchecked packet_length in transport.c

highCVSS 8.1CVE-2026-55200msrc2026-06-09

CVE-2025-15661: libssh2 - Heap Buffer Over-read via sftp_symlink() in sftp.c

mediumCVSS 6.5CVE-2025-15661msrc2026-06-09

CVE-2026-55199: libssh2 - Pre-Authentication DoS via SSH_MSG_EXT_INFO Handler

mediumCVSS 5.9CVE-2026-55199msrc2026-06-09