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.
History

Tue, 07 Apr 2026 20:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 07 Apr 2026 18:00:00 +0000

Type Values Removed Values Added
Title libssh: libssh: Insecure default configuration leads to local man-in-the-middle attacks on Windows Libssh: libssh: insecure default configuration leads to local man-in-the-middle attacks on windows
First Time appeared Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
CPEs cpe:/a:redhat:hummingbird:1
cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
References

Thu, 12 Feb 2026 11:30:00 +0000

Type Values Removed Values Added
First Time appeared Libssh
Libssh libssh
Vendors & Products Libssh
Libssh libssh

Wed, 11 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
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.
Title libssh: libssh: Insecure default configuration leads to local man-in-the-middle attacks on Windows
Weaknesses CWE-427
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Low


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-04-07T18:07:00.787Z

Reserved: 2025-12-17T11:45:32.329Z

Link: CVE-2025-14821

cve-icon Vulnrichment

Updated: 2026-04-07T17:46:34.612Z

cve-icon NVD

Status : Received

Published: 2026-04-07T17:16:25.433

Modified: 2026-04-07T17:16:25.433

Link: CVE-2025-14821

cve-icon Redhat

Severity : Low

Publid Date: 2026-02-10T18:51:56Z

Links: CVE-2025-14821 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-02-12T11:19:50Z