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CVE-2024-45782

25
FAUCET Score

CVE-2024-45782 is a heap-based out-of-bounds write vulnerability in the HFS filesystem driver within GRUB2, affecting GNU and Red Hat Enterprise Linux and OpenShift Container Platform. This flaw occurs during HFS volume name processing due to improper length validation, potentially compromising GRUB's data integrity and bypassing secure boot. With a CVSS score of 7.8 (High), it can be exploited locally with low complexity to achieve high impact on confidentiality, integrity, and availability. Currently, there is no public exploit code, Metasploit modules, or significant community discussion or media coverage, indicating a low likelihood of active exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.12CPE matchmatch criteria
cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
10.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 38th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

microsoftpatch availablevia msrc
Product: 20107-17086Fixed in: 2.06-15
microsoftpatch availablevia msrc
Product: 20521-17086Fixed in: 2.06-15
microsoftpatch availablevia msrc
Product: 19588-17084Fixed in: 2.06-25
microsoftpatch availablevia msrc
Product: 20560-17084Fixed in: 2.06-25
microsoftpatch availablevia msrc
Product: cbl2 grub2 2.06-14 on CBL Mariner 2.0Fixed in: 2.06-15
microsoftpatch availablevia msrc
Product: cbl2 grub2 2.06-15 on CBL Mariner 2.0Fixed in: 2.06-15
microsoftpatch availablevia msrc
Product: azl3 grub2 2.06-24 on Azure Linux 3.0Fixed in: 2.06-25
microsoftpatch availablevia msrc
Product: azl3 grub2 2.06-25 on Azure Linux 3.0Fixed in: 2.06-25

Vendor Advisories (2)

microsoft2025-Mar/CVE-2024-45782Moderate

Grub2: fs/hfs: strcpy() using the volume name (fs/hfs.c:382)

Mar 11, 2025
redhatCVE-2024-45782Moderate

grub2: fs/hfs: strcpy() using the volume name (fs/hfs.c:382)

Feb 18, 2025

References

access.redhat.com / security/cve/CVE-2024-45782
Broken Link
bugzilla.redhat.com / show_bug.cgi
Issue Tracking