CVE-2024-45779
mediumAn integer overflow flaw was found in the BFS file system driver in grub2.
Vendor / product: Gnu — grub2
An integer overflow flaw was found in the BFS file system driver in grub2. When reading a file with an indirect extent map, grub2 fails to validate the number of extent entries to be read. A crafted or corrupted BFS filesystem may cause an integer overflow during the file reading, leading to a heap of bounds read. As a consequence, sensitive data may be leaked, or grub2 will crash.
CVSS
6.0
6.0 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H Severity source: NVD CVSS v3.1 (secalert@redhat.com)
Timeline (UTC)
Published: 2025-03-03 15:15
Modified: 2026-10-21 17:17
NVD status: Modified
Last synced 14 hours ago
Verified against the source API 2026-11-05 15:17 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
gnu / grub2 ≤2.12
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://access.redhat.com/security/cve/CVE-2024-45779 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2345854 secalert@redhat.com
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html secalert@redhat.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-05 15:17 UTC · record ↗