CVE-2025-54771
Description
A use-after-free vulnerability has been identified in the GNU GRUB (Grand Unified Bootloader). The flaw occurs because the file-closing process incorrectly retains a memory pointer, leaving an invalid reference to a file system structure. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Affected | — |
| sid | Fixed | 2.14-1 |
| forky | Fixed | 2.14-1 |
| bullseye | Affected | — |
| bookworm | Affected | — |
References
- https://access.redhat.com/security/cve/CVE-2025-54771
- https://bugzilla.redhat.com/show_bug.cgi?id=2413823
- https://lists.gnu.org/archive/html/grub-devel/2025-11/msg00155.html
- http://www.openwall.com/lists/oss-security/2025/11/18/3
- https://security-tracker.debian.org/tracker/CVE-2025-54771
- https://www.suse.com/security/cve/CVE-2025-54771.html
CWEs
CWE-825
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.