CVE-2025-66678 — CRITICAL (9.8)

Q: How severe is CVE-2025-66678?

CVE-2025-66678 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2025-66678?

Check the references section above for vendor advisories and patch information. Affected products include: Faintsnow Hardware Read \& Write Utility.

Vulnerability Description

An issue in the HwRwDrv.sys component of Nil Hardware Editor Hardware Read & Write Utility v1.25.11.26 and earlier allows attackers to execute arbitrary read and write operations via a crafted request.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Faintsnow	Hardware Read \& Write Utility	<= 1.25.11.26

Related Weaknesses (CWE)

CWE-89

References

https://github.com/Faintsnow/HEBroken Link
https://github.com/cwjchoi01/CVE-2025-66678ExploitThird Party Advisory

FAQ

What is CVE-2025-66678?

CVE-2025-66678 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue in the HwRwDrv.sys component of Nil Hardware Editor Hardware Read & Write Utility v1.25.11.26 and earlier allows attackers to execute arbitrary read and write operations via a crafted request...

How severe is CVE-2025-66678?

CVE-2025-66678 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-66678?

Check the references section above for vendor advisories and patch information. Affected products include: Faintsnow Hardware Read \& Write Utility.