What is CVE-2025-29971?

CVE-2025-29971 is a high-severity vulnerability in Microsoft Windows 11 Version 22h2, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2025-05-13.

How severe is CVE-2025-29971?

High severity. CVSS v3 base score is 7.5 out of 10.

Out-of-bounds Read in Microsoft Windows 11 Version 22h2

CVE-2025-29971

Out-of-bounds read in Web Threat Defense (WTD.sys) allows an unauthorized attacker to deny service over a network.

Vulnerability class: Buffer Overflow

EPSS: 0.570 (98.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C.

Affected products

Microsoft Windows 11 Version 22h2 — versions 10.0.22621.0
Microsoft Windows 11 Version 22h3 — versions 10.0.22631.0
Microsoft Windows 11 Version 23h2 — versions 10.0.22631.0
Microsoft Windows 11 Version 24h2 — versions 10.0.26100.0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

Web Threat Defense (WTD.sys) Denial of Service Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2025-29971?: CVE-2025-29971 is a high-severity vulnerability in Microsoft Windows 11 Version 22h2, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2025-05-13.
How severe is CVE-2025-29971?: High severity. CVSS v3 base score is 7.5 out of 10.