A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is not discarded.
CVE-2024-45774
CVSS base score
6.7 (v3.1)
Severity
MEDIUM
Attack vector
Local
Weakness
CWE-787
Last modified
November 5, 2026
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H