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CVE-2025-53405— 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都是中国台湾威联通科技（QNAP Systems）公司的一个具有数据存储与管理功能的软件。 QNAP Systems QTS和QNAP Systems QuTS hero存在代码问题漏洞，该漏洞源于空指针取消引用，可能导致拒绝服务攻击。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.32% · P25

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-53405

Vulnerability Information
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Vulnerability Title
QTS, QuTS hero
Source: CVE Program / CVE List V5
Vulnerability Description
A NULL pointer dereference 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 launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 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:N/VA:L/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
QNAP Systems QTS和QNAP Systems QuTS hero 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNAP Systems QTS和QNAP Systems QuTS hero都是中国台湾威联通科技（QNAP Systems）公司的一个具有数据存储与管理功能的软件。 QNAP Systems QTS和QNAP Systems QuTS hero存在代码问题漏洞，该漏洞源于空指针取消引用，可能导致拒绝服务攻击。
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.x ~ 5.2.7.3256 build 20250913 -
QNAP Systems Inc. QuTS hero h5.2.x ~ h5.2.7.3256 build 20250913 -

II. Public POCs for CVE-2025-53405

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2025-53405

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Same Patch Batch · QNAP Systems Inc. · 2026-01-02 · 35 CVEs total

CVE-2025-59381 QTS, QuTS hero
CVE-2025-54166 QTS, QuTS hero
CVE-2025-57705 QTS, QuTS hero
CVE-2025-9110 QTS, QuTS hero
CVE-2025-48721 QTS, QuTS hero
CVE-2025-52871 License Center
CVE-2025-53594 Qfinder Pro, Qsync, QVPN
CVE-2025-53597 License Center
CVE-2025-59380 QTS, QuTS hero
CVE-2025-54165 QTS, QuTS hero
CVE-2025-59384 Qfiling
CVE-2025-59387 MARS (Multi-Application Recovery Service)
CVE-2025-62852 QTS, QuTS hero
CVE-2025-11837 Malware Remover
CVE-2025-62840 HBS 3 Hybrid Backup Sync
CVE-2025-62842 HBS 3 Hybrid Backup Sync
CVE-2025-59389 Hyper Data Protector
CVE-2025-53414 QTS, QuTS hero
CVE-2025-44013 QTS, QuTS hero
CVE-2025-47208 QTS, QuTS hero

Showing top 20 of 35 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: QTS
Same vendor: QNAP Systems Inc.
Same weakness: CWE-476

V. Comments for CVE-2025-53405

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