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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-29971

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

HIGH 7.5EPSS 64.4%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 64.4%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

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

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
64.37% probability · 99th percentile
CISA KEV
Not listed
Weakness
CWE-125
Affected
microsoft/windows 11 22h2 · microsoft/windows 11 23h2 · microsoft/windows 11 24h2
Source
secure@microsoft.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.