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CVE-2025-66280— QTS, QuTS hero

Quick assessment

Affected
QNAP Systems Inc. QTS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

QNAP Systems QTS和QNAP Systems QuTS hero都是中国威联通科技（QNAP Systems）公司的产品。QNAP Systems QTS是一个入门操作系统。QNAP Systems QuTS hero是一个具有数据存储与管理功能的软件。 QNAP Systems QTS和QNAP Systems QuTS hero存在安全漏洞，该漏洞源于整数溢出或环绕错误，可能导致远程攻击者利用管理员账户破坏系统安全。以下产品及版本受到影响：QTS 5.2.9.3410之前版本、QuTS

AI Predicted 6.5 Difficulty: Moderate EPSS 0.43% · P37

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 4

VendorProduct Version RangeStatus
QNAP Systems Inc. QTS 5.2.0< 5.2.9.3410 build 20260214 affected
QNAP Systems Inc. QuTS hero h5.2.0< h5.2.9.3410 build 20260214 affected
h5.3.0< h5.3.4.3500 build 20260520 affected
?< h6.0.0.3397 build 20260206 affected
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I. Basic Information for CVE-2025-66280

Vulnerability Information
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Vulnerability Title
QTS, QuTS hero
Source: CVE Program / CVE List V5
Vulnerability Description
An integer overflow or wraparound vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to compromise the security of the system. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3410 build 20260214 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3397 build 20260206 and later
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
QNAP Systems QTS和QNAP Systems QuTS hero 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNAP Systems QTS和QNAP Systems QuTS hero都是中国威联通科技（QNAP Systems）公司的产品。QNAP Systems QTS是一个入门操作系统。QNAP Systems QuTS hero是一个具有数据存储与管理功能的软件。 QNAP Systems QTS和QNAP Systems QuTS hero存在安全漏洞，该漏洞源于整数溢出或环绕错误，可能导致远程攻击者利用管理员账户破坏系统安全。以下产品及版本受到影响：QTS 5.2.9.3410之前版本、QuTS
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
QNAP Systems Inc. QTS 5.2.0 ~ 5.2.9.3410 build 20260214 -
QNAP Systems Inc. QuTS hero h5.2.0 ~ h5.2.9.3410 build 20260214 -

II. Public POCs for CVE-2025-66280

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2025-66280

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Vendor Advisories for CVE-2025-66280 (1)

Same Patch Batch · QNAP Systems Inc. · 2026-06-10 · 20 CVEs total

CVE-2026-22899 File Station 5
CVE-2025-66276 QTS
CVE-2025-59382 QTS, QuTS hero, QuTScloud, QVP (QVR Pro appliances)
CVE-2025-58468 Notification Center
CVE-2025-62850 QuTS hero
CVE-2025-62851 License Center
CVE-2025-66273 QTS, QuTS hero
CVE-2025-66279 QTS, QuTS hero
CVE-2025-66281 QTS, QuTS hero
CVE-2026-22893 QTS, QuTS hero
CVE-2026-26240 File Station 5
CVE-2026-24720 File Station 5
CVE-2026-24716 QTS, QuTS hero
CVE-2026-24717 QTS, QuTS hero
CVE-2026-24719 QTS, QuTS hero
CVE-2026-26237 QuMagie
CVE-2026-26239 File Station 5
CVE-2026-24724 File Station 5
CVE-2026-26241 File Station 5

IV. Related Vulnerabilities

Same product: QTS
Same vendor: QNAP Systems Inc.
Same weakness: CWE-190

V. Comments for CVE-2025-66280

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