How severe is CVE-2024-45781?

CVE-2024-45781 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-45781 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-45781?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-45781 have an EU (EUVD) identifier?

Yes. CVE-2024-45781 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4786.

When was CVE-2024-45781 published?

CVE-2024-45781 was published on 2025-02-18 and last updated on 2026-06-29.

CVE-2024-45781

CVE-2024-45781 is a medium-severity vulnerability with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-4786
Weakness: CWE-787
Published: 2025-02-18
Last modified: 2026-06-29

Description

A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.

Frequently asked questions

What is CVE-2024-45781?: A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.
How severe is CVE-2024-45781?: CVE-2024-45781 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-45781 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-45781?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-45781 have an EU (EUVD) identifier?: Yes. CVE-2024-45781 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4786.
When was CVE-2024-45781 published?: CVE-2024-45781 was published on 2025-02-18 and last updated on 2026-06-29.

References

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