CVE-2025-12053CWE-787

egwindrvx64.sys is potentially vulnerable to a buffer overflow

High · published January 14, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
5.6
In the wild
Unconfirmed
What it is

⚡ An untrusted user-mode application could trigger a buffer overflow in the drivers — it’s like letting a stranger rearrange the furniture in your house without a security check! Think of the buffer overflow as a guest at a dinner party who keeps piling food onto a plate that was never meant to hold that much — eventually, it spills over and creates a mess. This vulnerability allows an unverified application to push beyond its boundaries, potentially crashing or compromising the system. An attacker could exploit this situation to execute arbitrary code, gaining control over the system, accessing sensitive data, or causing a catastrophic crash. The consequences could range from minor annoyances to absolute chaos, depending on what the attacker aims to do!

Put simply

Think of the buffer overflow as a guest at a dinner party who keeps piling food onto a plate that was never meant to hold that much — eventually, it spills over and creates a mess. This vulnerability allows an unverified application to push beyond its boundaries, potentially crashing or compromising the system. This vulnerability stems from the use of the RTL_QUERY_REGISTRY_DIRECT flag in driver tool packages, allowing an untrusted application to read registry values unsafely, leading to a buffer overflow.

What to do

An attacker could exploit this situation to execute arbitrary code, gaining control over the system, accessing sensitive data, or causing a catastrophic crash. The consequences could range from minor annoyances to absolute chaos, depending on what the attacker aims to do! To remediate, apply patches that address this issue as soon as they are available. Additionally, validate and sanitize all input from user-mode applications to prevent untrusted data from causing harm. Regularly audit your drivers and applications for similar vulnerabilities. You've got this! With these steps, you'll keep your systems safe and sound! 🛡️

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00167 · 5.6th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-01-14T01:27Z
EPSS history
Timeline
  • 14 JAN 01:27Z
    egwindrvx64.sys is potentially vulnerable to a buffer overflow
    cvelistv5