Vulnerability in Microsoft Windows 11 21h2

CVE-2023-38146

Windows Themes Remote Code Execution Vulnerability

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.374 (98.5th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-38146: fell from 0.395 to 0.374.

EPSS over last 30 days · oldest: 0.395 · newest: 0.374 · change: -0.021

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-38146?
CVE-2023-38146 is a high-severity vulnerability in Microsoft Windows 11 21h2, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 8.8/10. Published 2023-09-12.
How severe is CVE-2023-38146?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2023-38146 known to be exploited?
18 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.