CVE-2025-66276

CRITICAL

QTS 4.3.x - NFS Access Control Misconfiguration

Title source: manual
STIX 2.1

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

References (1)

Core 1

Scores

CVSS v3 9.8
EPSS 0.0029
EPSS Percentile 20.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

Status published
Products (4)
qnap/qts 4.3.0 - 5.2.7.3256
QNAP Systems Inc./QTS 4.3.x - 5.2.x and later
QNAP Systems Inc./QTS 5.2.0 - 5.2.7.3256 build 20250913
QNAP Systems Inc./QuTS hero ?
Published Jun 10, 2026
Tracked Since Jun 10, 2026