What is CVE-2026-61933?

CVE-2026-61933 is a medium-severity vulnerability in Microsoft Windows 11 Version 24h2, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2026-08-11.

How severe is CVE-2026-61933?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Out-of-bounds Read in Microsoft Windows 11 Version 24h2

CVE-2026-61933

Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Microsoft Windows 11 Version 24h2 — versions 10.0.26100.0
Microsoft Windows 11 Version 25h2 — versions 10.0.26200.0
Microsoft Windows 11 Version 26h1 — versions 10.0.28000.0
Microsoft Windows Server 2025 — versions 10.0.26100.0
Microsoft Windows Server 2025 (Server Core Installation) — versions 10.0.26100.0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

Windows DWM Core Library Information Disclosure Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-61933?: CVE-2026-61933 is a medium-severity vulnerability in Microsoft Windows 11 Version 24h2, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2026-08-11.
How severe is CVE-2026-61933?: Medium severity. CVSS v3 base score is 5.5 out of 10.