How severe is CVE-2024-21740?

CVE-2024-21740 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-21740 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-21740?

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-2024-21740 have an EU (EUVD) identifier?

Yes. CVE-2024-21740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19355.

When was CVE-2024-21740 published?

CVE-2024-21740 was published on 2024-06-25 and last updated on 2026-06-17.

CVE-2024-21740

CVE-2024-21740 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-284.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19355
Weakness: CWE-284
Published: 2024-06-25
Last modified: 2026-06-17

Description

Artery AT32F415CBT7 and AT32F421C8T7 devices have Incorrect Access Control.

Frequently asked questions

What is CVE-2024-21740?: Artery AT32F415CBT7 and AT32F421C8T7 devices have Incorrect Access Control.
How severe is CVE-2024-21740?: CVE-2024-21740 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-21740 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-21740?: 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-2024-21740 have an EU (EUVD) identifier?: Yes. CVE-2024-21740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19355.
When was CVE-2024-21740 published?: CVE-2024-21740 was published on 2024-06-25 and last updated on 2026-06-17.

References

https://tches.iacr.org/index.php/TCHES/article/view/11422/10927

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