What’s Vulnerable › Vulnerabilities

CVE-2024-45778: Grub2: fs/bfs: integer overflow in the bfs parser.

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-03-03 · updated 2026-10-21
• Weakness: CWE-190

Description

A stack overflow flaw was found when reading a BFS file system. A crafted BFS filesystem may lead to an uncontrolled loop, causing grub2 to crash.

Affected products

• grub2: through 2.12
• Red Hat Enterprise Linux: 7.0, 8.0, 9.0
• Red Hat OpenShift Container Platform 4.18: 4.0

References

• https://access.redhat.com/security/cve/CVE-2024-45778
• https://bugzilla.redhat.com/show_bug.cgi?id=2345640
• https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html

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