CVE-2025-29971

Web Threat Defense (WTD.sys) Denial of Service Vulnerability

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2025-03-12 CVE Reserved
2025-05-13 CVE Published
2025-07-15 CVE Updated
2025-07-20 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29971	2025-05-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Windows 11 Version 22H2 Search vendor "Microsoft" for product "Windows 11 Version 22H2"				>= 10.0.22621.0 < 10.0.22621.5335 Search vendor "Microsoft" for product "Windows 11 Version 22H2" and version " >= 10.0.22621.0 < 10.0.22621.5335"		en		Affected
Microsoft Search vendor "Microsoft"		Windows 11 Version 22H3 Search vendor "Microsoft" for product "Windows 11 Version 22H3"				>= 10.0.22631.0 < 10.0.22631.5335 Search vendor "Microsoft" for product "Windows 11 Version 22H3" and version " >= 10.0.22631.0 < 10.0.22631.5335"		en		Affected
Microsoft Search vendor "Microsoft"		Windows 11 Version 23H2 Search vendor "Microsoft" for product "Windows 11 Version 23H2"				>= 10.0.22631.0 < 10.0.22631.5335 Search vendor "Microsoft" for product "Windows 11 Version 23H2" and version " >= 10.0.22631.0 < 10.0.22631.5335"		en		Affected
Microsoft Search vendor "Microsoft"		Windows 11 Version 24H2 Search vendor "Microsoft" for product "Windows 11 Version 24H2"				>= 10.0.26100.0 < 10.0.26100.4061 Search vendor "Microsoft" for product "Windows 11 Version 24H2" and version " >= 10.0.26100.0 < 10.0.26100.4061"		en		Affected