How severe is CVE-2024-21924?

CVE-2024-21924 has a CVSS 3.x base score of 8.2, 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 high.

Is CVE-2024-21924 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-21924?

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-2024-21924 have an EU (EUVD) identifier?

Yes. CVE-2024-21924 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19530.

When was CVE-2024-21924 published?

CVE-2024-21924 was published on 2025-02-11 and last updated on 2026-06-17.

CVE-2024-21924

CVE-2024-21924 is a high-severity vulnerability with a CVSS 3.x base score of 8.2. 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-250.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19530
Weakness: CWE-250
Published: 2025-02-11
Last modified: 2026-06-17

Description

SMM callout vulnerability within the AmdPlatformRasSspSmm driver could allow a ring 0 attacker to modify boot services handlers, potentially resulting in arbitrary code execution.

Frequently asked questions

What is CVE-2024-21924?: SMM callout vulnerability within the AmdPlatformRasSspSmm driver could allow a ring 0 attacker to modify boot services handlers, potentially resulting in arbitrary code execution.
How severe is CVE-2024-21924?: CVE-2024-21924 has a CVSS 3.x base score of 8.2, 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 high.
Is CVE-2024-21924 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-21924?: 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-2024-21924 have an EU (EUVD) identifier?: Yes. CVE-2024-21924 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19530.
When was CVE-2024-21924 published?: CVE-2024-21924 was published on 2025-02-11 and last updated on 2026-06-17.

References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7028.html

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