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Vulnerability record · CVE-2025-8114 · published 24 July 2025

CVE-2025-8114: Libssh null pointer dereference vulnerability

Libssh · Libssh

A flaw was found in libssh, a library that implements the SSH protocol. When calculating the session ID during the key exchange (KEX) process, an allocation failure in cryptographic functions may lead to a NULL pointer dereference. This issue can cause the client or server to crash.

4.7 CVSS 3.1 Medium EPSS 0.22% · top 88.5% CWE-476 · NULL pointer dereference
4.7CVSS 3.1 base score
0.22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
1 Sep 2026Last modified by NVD

Description

A flaw was found in libssh, a library that implements the SSH protocol. When calculating the session ID during the key exchange (KEX) process, an allocation failure in cryptographic functions may lead to a NULL pointer dereference. This issue can cause the client or server to crash.

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:18683
https://access.redhat.com/security/cve/CVE-2025-8114 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2383220 Issue TrackingThird Party Advisory
https://git.libssh.org/projects/libssh.git/commit/?id=53ac23ded4cb2c5463f6c4cd1525331bd578812d
https://git.libssh.org/projects/libssh.git/commit/?id=65f363c9
https://www.libssh.org/security/advisories/CVE-2025-8114.txt

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-8114), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.