How severe is CVE-2024-52879?

CVE-2024-52879 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2024-52879 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-52879?

CVE-2024-52879 affects Insyde Insydeh2o. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-52879?

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-2024-52879 have an EU (EUVD) identifier?

Yes. CVE-2024-52879 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54546.

When was CVE-2024-52879 published?

CVE-2024-52879 was published on 2025-05-15 and last updated on 2026-06-17.

CVE-2024-52879

CVE-2024-52879 is a high-severity vulnerability in Insyde Insydeh2o with a CVSS 3.x base score of 7.5. 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-126.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54546
Weakness: CWE-126
Affected product: Insyde Insydeh2o
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, SmmUpdateVariablePropertySmi () is a SMM callback function and it uses StrCmp () to compare variable names. This action may cause a buffer over-read.

Frequently asked questions

What is CVE-2024-52879?: 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, SmmUpdateVariablePropertySmi () is a SMM callback function and it uses StrCmp () to compare variable names. This action may cause a buffer over-read.
How severe is CVE-2024-52879?: CVE-2024-52879 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2024-52879 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-52879?: CVE-2024-52879 affects Insyde Insydeh2o. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-52879?: 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-2024-52879 have an EU (EUVD) identifier?: Yes. CVE-2024-52879 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54546.
When was CVE-2024-52879 published?: CVE-2024-52879 was published on 2025-05-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*

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