{"id":"CVE-2024-45781","title":"A flaw was found in grub2","summary":"A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issu…","severity":"medium","cvss":6.7,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"published":"2025-02-18","updated":"2026-06-25","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-45781","references":[{"url":"https://access.redhat.com/errata/RHSA-2025:16154","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:6990","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2024-45781","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2345857","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.00255,"epssPercentile":0.17384,"ingestedAt":"2026-06-29T13:24:34.157Z","slug":"CVE-2024-45781","body":"## Overview\n\nA flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":36.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}