VULNERABILITY INTELLIGENCE

CVE-2025-0689

CVSS score7.8 HIGH
EPSS probability0.50%
CISA KEVNot currently listed
Published2025-03-03
Last modified2026-10-21
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

When reading data from disk, the grub's UDF filesystem module utilizes the user controlled data length metadata to allocate its internal buffers. In certain scenarios, while iterating through disk sectors, it assumes the read size from the disk is always smaller than the allocated buffer size which is not guaranteed. A crafted filesystem image may lead to a heap-based buffer overflow resulting in critical data to be corrupted, resulting in the risk of arbitrary code execution by-passing secure boot protections.

Weakness classification

  • secalert@redhat.com: CWE-120

Primary references