How severe is CVE-2024-52880?

CVE-2024-52880 has a CVSS 3.x base score of 7.9, rated high 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 none.

Is CVE-2024-52880 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-52880?

CVE-2024-52880 affects Insyde Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-52880?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-52880 have an EU (EUVD) identifier?

Yes. CVE-2024-52880 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54544.

When was CVE-2024-52880 published?

CVE-2024-52880 was published on 2025-05-15 and last updated on 2026-06-17.

CVE-2024-52880

CVE-2024-52880 is a high-severity vulnerability in Insyde Kernel with a CVSS 3.x base score of 7.9. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.9)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54544
Weakness: CWE-20
Affected product: Insyde Kernel
Published: 2025-05-15
Last modified: 2026-06-17

Description

An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3 before version 05.38.50, kernel 5.4 before version 05.46.50, kernel 5.5 before version 05.54.50, kernel 5.6 before version 05.61.50, and kernel 5.7 before version 05.70.50. In VariableRuntimeDxe driver, SecureBootHandler uses DataSize and VariableNameSize when determining if the data or name are in the buffer, but these are supplied by the caller and therefore cannot be trusted.

Frequently asked questions

What is CVE-2024-52880?: An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3 before version 05.38.50, kernel 5.4 before version 05.46.50, kernel 5.5 before version 05.54.50, kernel 5.6 before version 05.61.50, and kernel 5.7 before version 05.70.50. In VariableRuntimeDxe driver, SecureBootHandler uses DataSize and VariableNameSize when determining if the data or name are in the buffer, but these are supplied by the caller and therefore cannot be trusted.
How severe is CVE-2024-52880?: CVE-2024-52880 has a CVSS 3.x base score of 7.9, rated high 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 none.
Is CVE-2024-52880 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-52880?: CVE-2024-52880 affects Insyde Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-52880?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-52880 have an EU (EUVD) identifier?: Yes. CVE-2024-52880 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54544.
When was CVE-2024-52880 published?: CVE-2024-52880 was published on 2025-05-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:*

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