How severe is CVE-2024-27353?

CVE-2024-27353 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2024-27353 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-27353?

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-2024-27353 have an EU (EUVD) identifier?

Yes. CVE-2024-27353 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-24559.

When was CVE-2024-27353 published?

CVE-2024-27353 was published on 2024-05-15 and last updated on 2026-06-17.

CVE-2024-27353

CVE-2024-27353 is a high-severity vulnerability with a CVSS 3.x base score of 7.4. 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-822.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-24559
Weakness: CWE-822
Published: 2024-05-15
Last modified: 2026-06-17

Description

A memory corruption vulnerability in SdHost and SdMmcDevice in Insyde InsydeH2O kernel 5.2 before 05.29.09, kernel 5.3 before 05.38.09, kernel 5.4 before 05.46.09, kernel 5.5 before 05.54.09, and kernel 5.6 before 05.61.09 could lead to escalating privileges in SMM.

Frequently asked questions

What is CVE-2024-27353?: A memory corruption vulnerability in SdHost and SdMmcDevice in Insyde InsydeH2O kernel 5.2 before 05.29.09, kernel 5.3 before 05.38.09, kernel 5.4 before 05.46.09, kernel 5.5 before 05.54.09, and kernel 5.6 before 05.61.09 could lead to escalating privileges in SMM.
How severe is CVE-2024-27353?: CVE-2024-27353 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2024-27353 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-27353?: 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-2024-27353 have an EU (EUVD) identifier?: Yes. CVE-2024-27353 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-24559.
When was CVE-2024-27353 published?: CVE-2024-27353 was published on 2024-05-15 and last updated on 2026-06-17.

References

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