CVE-2025-66276 CRITICAL

CVE-2025-66276: QTS

Vendor Qnap Systems Inc.
Product QTS
Published June 10, 2026
Last update June 10, 2026

CVSS base score

9.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

June 10, 2026 CVE published
June 10, 2026 Record updated