How severe is CVE-2024-33221?

CVE-2024-33221 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-33221 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-33221?

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-2024-33221 have an EU (EUVD) identifier?

Yes. CVE-2024-33221 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-30966.

When was CVE-2024-33221 published?

CVE-2024-33221 was published on 2024-05-22 and last updated on 2026-06-17.

CVE-2024-33221

CVE-2024-33221 is a high-severity vulnerability with a CVSS 3.x base score of 7.8. 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-782.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-30966
Weakness: CWE-782
Published: 2024-05-22
Last modified: 2026-06-17

Description

An issue in the component AsusBSItf.sys of ASUSTeK Computer Inc ASUS BIOS Flash Driver v3.2.12.0 allows attackers to escalate privileges and execute arbitrary code via sending crafted IOCTL requests.

Frequently asked questions

What is CVE-2024-33221?: An issue in the component AsusBSItf.sys of ASUSTeK Computer Inc ASUS BIOS Flash Driver v3.2.12.0 allows attackers to escalate privileges and execute arbitrary code via sending crafted IOCTL requests.
How severe is CVE-2024-33221?: CVE-2024-33221 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-33221 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-33221?: 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-2024-33221 have an EU (EUVD) identifier?: Yes. CVE-2024-33221 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-30966.
When was CVE-2024-33221 published?: CVE-2024-33221 was published on 2024-05-22 and last updated on 2026-06-17.

References

https://github.com/DriverHunter/Win-Driver-EXP/tree/main/CVE-2024-33221

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