A link following vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to traverse the file system to unintended locations. We have already fixed the vulnerability in the following versions: QTS 5.2.8.3350 build 20251216 and later QuTS hero h5.3.2.3354 build 20251225 and later QuTS hero h5.2.8.3350 build 20251216 and later
History

Wed, 11 Feb 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Qnap Systems
Qnap Systems qts
Qnap Systems quts Hero
Vendors & Products Qnap Systems
Qnap Systems qts
Qnap Systems quts Hero

Wed, 11 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 11 Feb 2026 12:45:00 +0000

Type Values Removed Values Added
Description A link following vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to traverse the file system to unintended locations. We have already fixed the vulnerability in the following versions: QTS 5.2.8.3350 build 20251216 and later QuTS hero h5.3.2.3354 build 20251225 and later QuTS hero h5.2.8.3350 build 20251216 and later
Title QTS, QuTS hero
Weaknesses CWE-59
References
Metrics cvssV4_0

{'score': 9.2, '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: qnap

Published: 2026-02-11T12:15:43.851Z

Updated: 2026-02-11T16:49:06.520Z

Reserved: 2025-11-26T09:25:37.832Z

Link: CVE-2025-66277

cve-icon Vulnrichment

Updated: 2026-02-11T16:49:03.424Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-11T13:15:58.380

Modified: 2026-02-11T15:27:26.370

Link: CVE-2025-66277

cve-icon Redhat

No data.