{"id":"CVE-2024-45776","title":"When reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer","summary":"When reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads a…","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-2024-45776","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-2024-45776","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2339182","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.00261,"epssPercentile":0.18215,"ingestedAt":"2026-06-29T13:24:34.156Z","slug":"CVE-2024-45776","body":"## Overview\n\nWhen reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak sensitive data or overwrite critical data, possibly circumventing 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":[]}