CVE-2024-45779

Name: CVE-2024-45779
Creator: NVD / NIST
Published: 2025-03-03T15:15:14.66+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6/10EPSS 0.26%

Last modified Jun 25, 2026

CVE-2024-45779 is a medium-severity vulnerability rated 6/10 on the CVSS scale. An integer overflow flaw was found in the BFS file system driver in grub2. When reading a file with an indirect extent map, grub2 fails to validate the number of extent entries to be read. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

Description

An integer overflow flaw was found in the BFS file system driver in grub2. When reading a file with an indirect extent map, grub2 fails to validate the number of extent entries to be read. A crafted or corrupted BFS filesystem may cause an integer overflow during the file reading, leading to a heap of bounds read. As a consequence, sensitive data may be leaked, or grub2 will crash.

Metrics

CVSS 3.1

6/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H

EPSS Probability

0.26%

17.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gnu	Grub2	<= 2.12

References

https://access.redhat.com/security/cve/CVE-2024-45779Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2345854Issue Tracking
https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.htmlMailing List

Timeline

Published: Mar 3, 2025
Last Modified: Jun 25, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-45779?

How severe is CVE-2024-45779?

CVE-2024-45779 has a CVSS score of 6/10 (MEDIUM severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.

How do I fix CVE-2024-45779?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-45779?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST