CVE-2025-54771
CSIRTS triage
- What
- A use-after-free vulnerability exists in the grub_file_close() function.
- Who is affected
- GRUB2 bootloader installations are affected when handling file operations.
- Urgency
- Medium priority; memory corruption could lead to code execution but requires specific conditions to trigger.
- Action
- Update GRUB2 to a version with the use-after-free fix applied.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
Advisory coverage (1)
- mediumCVE-2025-54771: Grub2: use-after-free in grub_file_close()msrc · 2026-08-06
External references
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