CVE-2025-14821

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Source
https://cve.org/CVERecord?id=CVE-2025-14821
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-14821.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-14821
Downstream
Related
Published
2026-04-07T16:34:10.718Z
Modified
2026-05-28T04:10:24.070792646Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Libssh: libssh: insecure default configuration leads to local man-in-the-middle attacks on windows
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/14xxx/CVE-2025-14821.json",
    "cwe_ids": [
        "CWE-427"
    ],
    "cna_assigner": "redhat"
}
References

Affected packages

Git / gitlab.com/libssh/libssh-mirror

Affected ranges

Type
GIT
Repo
https://gitlab.com/libssh/libssh-mirror
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
50313883f3a077458cde4ea95bf46bfeb0771b34
Database specific 
{
    "cpe": "cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.12.0"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

libssh-0.*
libssh-0.11.0
libssh-0.8.0
Other
release-0-3-0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-14821.json"