LI
Product
libssh
by Libssh · last CVE Jul 21, 2026
45
CVEs
0
On KEV
9.1
Max CVSS
0
New 30D
Severity mix
Critical 1High 12Medium 21Low 3
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Add libssh to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-59851
8.8
0%
Jul 21
Libssh: libssh: authentication bypass via missing gssapi principal check
Affected: All versions, or not specified
CVE-2025-5372
8.8
1%
Jul 4
A flaw was found in libssh versions built with OpenSSL versions older than 3.0, specifically in the ssh_kdf() function responsible for key derivation
Affected: before 0.11.2
CVE-2019-14889
8.8
3%
Dec 10
A flaw was found with the libssh API function ssh_scp_new() in versions before 0.9.3 and before 0.8.8
Affected: before 0.8.8; 0.9.0 before 0.9.3
CVE-2026-0966
8.2
1%
Mar 26
Libssh: libssh: denial of service via zero-length input in ssh_get_hexa()
Affected: before 0.11.4
CVE-2025-5987
8.1
2%
Jul 7
Libssh: invalid return code for chacha20 poly1305 with openssl backend
Affected: 0.10.0 before 0.11.2
CVE-2026-59850
7.5
0%
Jul 21
Libssh: libssh: use-after-free via data callbacks on closed channels
Affected: All versions, or not specified
CVE-2026-59849
7.5
0%
Jul 21
Libssh: libssh: denial of service via automatic certificate authentication loop
Affected: 0.11.0 before 0.11.5; 0.12.0
CVE-2026-59847
7.5
0%
Jul 21
Libssh: libssh: integrity downgrade via openssl aes-gcm tag verification
Affected: 0.9.0 before 0.11.5; 0.12.0
CVE-2026-3731
7.5
1%
Mar 8
libssh SFTP Extension Name sftp.c sftp_extensions_get_data out-of-bounds
Affected: 0.11.0; 0.11.1; 0.11.2; 0.11.3
CVE-2015-3146
7.5
4%
Apr 13
The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a…
Affected: through 0.6.4
CVE-2026-15370
7.3
0%
Jul 21
Libssh: libssh: stack buffer overflow in sftp server longname construction
Affected: 0.11.0 before 0.11.5; 0.12.0
CVE-2025-14821
7.0
0%
Apr 7
Libssh: libssh: insecure default configuration leads to local man-in-the-middle attacks on windows
Affected: before 0.12.0
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