{"id":"CVE-2025-4878","title":"A vulnerability was found in libssh, where an uninitialized variable exists under certain conditions in the privatekey_from_file() function","summary":"A vulnerability was found in libssh, where an uninitialized variable exists under certain conditions in the privatekey_from_file() function. This flaw can be triggered if the file specified by the filename doesn't exist and may lead to p…","severity":"low","cvss":3.6,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-416"],"published":"2025-07-22","updated":"2026-06-25","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-4878","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:18683","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2025-4878","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2376184","label":"secalert@redhat.com"},{"url":"https://git.libssh.org/projects/libssh.git/commit/?id=697650caa97eaf7623924c75f9fcfec6dd423cd1","label":"secalert@redhat.com"},{"url":"https://git.libssh.org/projects/libssh.git/commit/?id=b35ee876adc92a208d47194772e99f9c71e0bedb","label":"secalert@redhat.com"},{"url":"https://www.libssh.org/security/advisories/CVE-2025-4878.txt","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.00186,"epssPercentile":0.08442,"ingestedAt":"2026-06-29T13:24:34.396Z","slug":"CVE-2025-4878","body":"## Overview\n\nA vulnerability was found in libssh, where an uninitialized variable exists under certain conditions in the privatekey_from_file() function. This flaw can be triggered if the file specified by the filename doesn't exist and may lead to possible signing failures or heap corruption.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":20,"depthScoreParts":{"impact":19.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}