CVE-2025-66276 — CRITICAL (9.8)

Q: What is CVE-2025-66276?

CVE-2025-66276 is a vulnerability with a CVSS score of 9.8 (CRITICAL). QuTS hero is not affected. We have already fixed the vulnerability in the following version: QTS 5.2.7.3256 build 20250913 and later

Q: How severe is CVE-2025-66276?

CVE-2025-66276 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-2025-66276?

Check the references section above for vendor advisories and patch information. Affected products include: Qnap Qts.

Vulnerability Description

QuTS hero is not affected. We have already fixed the vulnerability in the following version: QTS 5.2.7.3256 build 20250913 and later

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
Qnap	Qts	>= 4.3.0, < 5.2.7.3256

References

https://www.qnap.com/en/security-advisory/qsa-25-56Vendor Advisory

FAQ

What is CVE-2025-66276?

CVE-2025-66276 is a vulnerability with a CVSS score of 9.8 (CRITICAL). QuTS hero is not affected. We have already fixed the vulnerability in the following version: QTS 5.2.7.3256 build 20250913 and later

How severe is CVE-2025-66276?

CVE-2025-66276 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-2025-66276?

Check the references section above for vendor advisories and patch information. Affected products include: Qnap Qts.