What is CVE-2023-38150?

CVE-2023-38150 is a high-severity vulnerability in Microsoft Windows 11 21h2, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2023-09-12.

How severe is CVE-2023-38150?

High severity. CVSS v3 base score is 7.8 out of 10.

Integer overflow in Microsoft Windows 11 21h2

CVE-2023-38150

Windows Kernel Elevation of Privilege Vulnerability

Vulnerability class: Integer Overflow

Published 2023-09-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (44.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: -0.000

Affected products

Microsoft Windows 11 21h2
Microsoft Windows 11 22h2
Microsoft Windows 11 Version 21h2 — versions 10.0.0
Microsoft Windows 11 Version 22h2 — versions 10.0.22621.0

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38150 (vendor-advisory, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-38150?: CVE-2023-38150 is a high-severity vulnerability in Microsoft Windows 11 21h2, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2023-09-12.
How severe is CVE-2023-38150?: High severity. CVSS v3 base score is 7.8 out of 10.