---
id: 3039
title: "Heap-based buffer overflow in Kernel Streaming WOW Thunk Service Driver – CVE-2025-53149"
cve: CVE-2025-53149
cvss: 7.8
severity: high
source_domain: crowdfense.com
source_url: "https://www.crowdfense.com/cve-2025-53149-windows-ksthunk-heap-overflow/"
published_at: "2025-09-04 10:03"
tags: ["windows-kernel", "patch-analysis", "cve-2025-53149", "ksthunk", "heap-overflow", "driver-vulnerability", "kernel-streaming"]
phying_url: "https://phying.com/item/3039"
lang: en
---

# Heap-based buffer overflow in Kernel Streaming WOW Thunk Service Driver – CVE-2025-53149

## Summary

Technical deep-dive into CVE-2025-53149, a heap-based buffer overflow in the Windows Kernel Streaming WOW Thunk Service driver (ksthunk.sys).

## Intelligence Metadata

- **Sources:** crowdfense.com
- **CVE:** CVE-2025-53149
- **CVSS:** 7.8
- **Published:** 2025-09-04 10:03
- **Original:** https://www.crowdfense.com/cve-2025-53149-windows-ksthunk-heap-overflow/
- **Phying News:** https://phying.com/item/3039