CVE-2024-45776
mediumWhen reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer.
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 and writes. This flaw allows an attacker to leak sensitive data or overwrite critical data, possibly circumventing secure boot protections.
CVSS
6.7
6.7 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (secalert@redhat.com)
Timeline (UTC)
Published: 2025-02-18 20:15
Modified: 2026-10-21 21:17
NVD status: Deferred
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
Not reported by the source (unknown — not "none").
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/errata/RHSA-2025:16154 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2025:6990 secalert@redhat.com
- https://access.redhat.com/security/cve/CVE-2024-45776 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2339182 secalert@redhat.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-05 15:17 UTC · record ↗