CVE-2023-21766
MediumPublished
Windows Overlay Filter Information Disclosure Vulnerability
- Published
- Jan 10, 2023
- Updated
- Jan 1, 2025
- Assigning CNA
- microsoft
- Evidence observed
- Aug 8, 2026
Primary CVSS
4.7/ 10Medium
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N0.9%
Low · next 30 days
- Percentile
- 58.2%
- Model date
- Oct 19, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Windows Overlay Filter Information Disclosure Vulnerability
Sources
wof.sys race condition uaf read poc
Responsible use
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