Description
A flaw was found in libssh. This vulnerability allows local man-in-the-middle attacks, security downgrades of SSH (Secure Shell) connections, and manipulation of trusted host information, posing a significant risk to the confidentiality, integrity, and availability of SSH communications via an insecure default configuration on Windows systems where the library automatically loads configuration files from the C:\etc directory, which can be created and modified by unprivileged local users.
Affected products
libssh: libssh; redhat: hardened images
References4
- access.redhat.com/errata/RHSA-2026:7067 Third Party Advisory
- access.redhat.com/security/cve/CVE-2025-14821 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2423148 Issue TrackingThird Party Advisory
- www.libssh.org/2026/02/10/libssh-0-12-0-and-0-11-4-security-rel… Release Notes
Metrics
- CVSS 3.1
-
7.0
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 3 · as of 12 November 2026
- CWE
- CWE-427
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