What is CVE-2025-66678?

CVE-2025-66678 is a critical-severity vulnerability in Faintsnow Hardware Read \& Write Utility, classified under SQL Injection. CVSS score: 9.8/10. Published 2026-03-04.

How severe is CVE-2025-66678?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-66678 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SQL Injection in Faintsnow Hardware Read \& Write Utility

CVE-2025-66678

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.

Vulnerability class: SQL Injection

EPSS: 0.006 (47.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Faintsnow Hardware_read_\&_write_utility
N/a — versions n/a

Weakness classification (CWE)

CWE-89 — SQL Injection

Public proof-of-concept exploits

cwjchoi01/CVE-2025-66678

References

cve@mitre.org (Broken Link)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-66678?: CVE-2025-66678 is a critical-severity vulnerability in Faintsnow Hardware Read \& Write Utility, classified under SQL Injection. CVSS score: 9.8/10. Published 2026-03-04.
How severe is CVE-2025-66678?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-66678 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.