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Fencer Intel
high 7.8

CVE-2024-21431 json

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

published 2y ago modified 4mo ago also EUVD-2024-19140

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

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

Patch / fix

  • Microsoft Windows Server 2022 10.0.20348.2340
  • Microsoft Windows 11 version 21H2 10.0.22000.2836
  • Microsoft Windows 10 Version 21H2 10.0.19044.4170
  • Microsoft Windows 11 version 22H2 10.0.22621.3296
  • Microsoft Windows 10 Version 22H2 10.0.19045.4170
  • Microsoft Windows 11 version 22H3 10.0.22631.3296
  • Microsoft Windows 11 Version 23H2 10.0.22631.3296
  • Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.763

Is CVE-2024-21431 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2y ago

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Microsoft Windows Server 2022
  • Microsoft Windows 11 version 21H2
  • Microsoft Windows 10 Version 21H2
  • Microsoft Windows 11 version 22H2
  • Microsoft Windows 10 Version 22H2
  • Microsoft Windows 11 version 22H3
  • Microsoft Windows 11 Version 23H2
  • Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)

Classification

Weakness
  • CWE-732 Incorrect Permission Assignment for Critical Resource

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.