Integer overflow in Gnu Grub2
CVE-2025-0678
A flaw was found in grub2. When reading data from a squash4 filesystem, grub's squash4 fs module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer…
Vulnerability class: Integer Overflow
EPSS: 0.003 (19.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry, Broken Link)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Issue Tracking)
- secalert@redhat.com
Frequently asked questions
- What is CVE-2025-0678?
- CVE-2025-0678 is a high-severity vulnerability in Gnu Grub2, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2025-03-03.
- How severe is CVE-2025-0678?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2025-0678 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.