CVE-2025-53149

high

Description

Heap-based buffer overflow in Kernel Streaming WOW Thunk Service Driver allows an authorized attacker to elevate privileges locally.

References

https://www.crowdfense.com/cve-2025-53149-windows-ksthunk-heap-overflow/

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53149

Details

Source: Mitre, NVD

Published: 2025-08-12

Updated: 2025-09-06

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00045