Cyber Resilience

CVE-2024-21431

HighLPE

Published: 12 March 2024

Published
12 March 2024
Modified
29 November 2024
KEV Added
Patch
CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0040 61.2th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-21431 is a high-severity Incorrect Permission Assignment for Critical Resource (CWE-732) vulnerability in Microsoft Windows 10 21H2. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 38.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Hypervisor-Protected Code Integrity (HVCI) Security Feature Bypass Vulnerability

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

microsoft
windows 10 21h2
≤ 10.0.19044.4170 · ≤ 10.0.19044.4170 · ≤ 10.0.19044.4170
microsoft
windows 10 22h2
≤ 10.0.19045.4170 · ≤ 10.0.19045.4170 · ≤ 10.0.19045.4170
microsoft
windows 11 21h2
≤ 10.0.22000.2836 · ≤ 10.0.22000.2836
microsoft
windows 11 22h2
≤ 10.0.22621.3296 · ≤ 10.0.22621.3296
microsoft
windows 11 23h2
≤ 10.0.22631.3296 · ≤ 10.0.22631.3296
microsoft
windows server 2022
≤ 10.0.20348.2340
microsoft
windows server 2022 23h2
≤ 10.0.25398.763

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-732

Procedures support proper permission assignment for critical resources through documented controls.

addresses: CWE-732

Attribute management for resources provides a mechanism to assign and maintain correct permissions based on security labels.

addresses: CWE-732

Prevents overly permissive assignments to critical resources by limiting to task needs.

addresses: CWE-732

Training policy covers correct permission assignment, reducing the ability to exploit incorrect permission assignments for critical resources.

addresses: CWE-732

Training on permission management reduces incorrect permission assignments for critical resources.

addresses: CWE-732

Audit logs and logging tools are critical resources whose protection requires correct permission assignments to block unauthorized actions.

addresses: CWE-732

Assessments review permission assignments on critical resources to confirm correctness, mitigating exploitation via incorrect permissions.

addresses: CWE-732

Certification includes checking that permissions on critical resources are correctly assigned.

References