CVE-2025-14821

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.

CVSS 3.1

7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-25)

CWE

CWE-427

Published

2026-04-07

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• libssh:libssh
• redhat:hardened_images

References

• https://access.redhat.com/errata/RHSA-2026:7067
• https://access.redhat.com/security/cve/CVE-2025-14821
• https://bugzilla.redhat.com/show_bug.cgi?id=2423148
• https://www.libssh.org/2026/02/10/libssh-0-12-0-and-0-11-4-security-releases/

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