{"id":"CVE-2025-14821","title":"A flaw was found in libssh","summary":"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,…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-427"],"published":"2026-04-07","updated":"2026-06-25","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-14821","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:7067","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2025-14821","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2423148","label":"secalert@redhat.com"},{"url":"https://www.libssh.org/2026/02/10/libssh-0-12-0-and-0-11-4-security-releases/","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.00129,"epssPercentile":0.02968,"ingestedAt":"2026-06-29T13:24:34.820Z","slug":"CVE-2025-14821","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}