How severe is CVE-2024-55567?

CVE-2024-55567 has a CVSS 3.x base score of 7.5, 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 high.

Is CVE-2024-55567 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-55567?

CVE-2024-55567 affects Insyde Insydeh2o. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-55567?

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-2024-55567 have an EU (EUVD) identifier?

Yes. CVE-2024-55567 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54678.

When was CVE-2024-55567 published?

CVE-2024-55567 was published on 2025-06-12 and last updated on 2026-06-17.

CVE-2024-55567

CVE-2024-55567 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54678
Weakness: CWE-20
Affected product: Insyde Insydeh2o
Published: 2025-06-12
Last modified: 2026-06-17

Description

Improper input validation was discovered in UsbCoreDxe in Insyde InsydeH2O kernel 5.4 before 05.47.01, 5.5 before 05.55.01, 5.6 before 05.62.01, and 5.7 before 05.71.01. The SMM module has an SMM call out vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.

Frequently asked questions

What is CVE-2024-55567?: Improper input validation was discovered in UsbCoreDxe in Insyde InsydeH2O kernel 5.4 before 05.47.01, 5.5 before 05.55.01, 5.6 before 05.62.01, and 5.7 before 05.71.01. The SMM module has an SMM call out vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.
How severe is CVE-2024-55567?: CVE-2024-55567 has a CVSS 3.x base score of 7.5, 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 high.
Is CVE-2024-55567 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-55567?: CVE-2024-55567 affects Insyde Insydeh2o. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-55567?: 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-2024-55567 have an EU (EUVD) identifier?: Yes. CVE-2024-55567 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54678.
When was CVE-2024-55567 published?: CVE-2024-55567 was published on 2025-06-12 and last updated on 2026-06-17.

References

https://www.insyde.com/security-pledge/sa-2024018/

Affected products (1)

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

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