PT-2025-6318 · Microsoft · Kernel Streaming Wow Thunk Service Driver+1

Angelboy · Published 2025-02-11 · Updated 2025-06-06 · CVE-2025-21375

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Kernel Streaming WOW Thunk Service Driver (affected versions not specified)

Description: The issue is related to a buffer overflow in dynamic memory, which can be exploited to elevate privileges. This can allow an attacker to affect the system. There is no information provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

LPE

RCE

Heap Based Buffer Overflow

Weakness Enumeration

CWE-20

CWE-122

Related Identifiers

BDU:2025-01531

CVE-2025-21375

Affected Products

Kernel Streaming Wow Thunk Service Driver

Windows

References · 9

• https://osv.dev/vulnerability/CVE-2025-21375 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-21375 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21375 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-01531 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-21375 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21375 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21375 · Vendor Advisory
• https://twitter.com/crowdfense/status/1930988056066347482 · Twitter Post
• https://twitter.com/CVEnew/status/1889378137747890446 · Twitter Post