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TI-2025-40752 Aliases CVE-2025-66273GHSA-8g9p-fvw8-cwm4

OS command injection in QNAP QTS

Priority MEDIUM 41CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

A command injection 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 execute arbitrary commands. 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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01051 64th percentileScored 2026-11-07
Fix Fixed QTS (QNAP Systems Inc.): 5.2.9.3410 build 20260214QuTS hero (QNAP Systems Inc.): h5.2.9.3410 build 20260214, h5.3.4.3500 build 20260520, h6.0.0.3397 build 20260206

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
QNAPQTS5.2.0 to before 5.2.9.3410 build 202602145.2.9.3410 build 20260214Patch availableCNA
QNAPQuTS heroh5.2.0 to before h5.2.9.3410 build 20260214; h5.3.0 to before h5.3.4.3500 build 20260520; ? to before h6.0.0.3397 build 20260206h5.2.9.3410 build 20260214, h5.3.4.3500 build 20260520, h6.0.0.3397 build 20260206Patch availableCNA
  • QTS VendorQNAP Affected 5.2.0 to before 5.2.9.3410 build 20260214 Fixed in 5.2.9.3410 build 20260214 Patch available CNA
  • QuTS hero VendorQNAP Affected h5.2.0 to before h5.2.9.3410 build 20260214; h5.3.0 to before h5.3.4.3500 build 20260520; ? to before h6.0.0.3397 build 20260206 Fixed in h5.2.9.3410 build 20260214, h5.3.4.3500 build 20260520, h6.0.0.3397 build 20260206 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*5.2.0.2737 to before 5.2.9.3410VulnerableQNAP
cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*h5.2.0.2737 to before h5.2.9.3410; h5.3.0.3115 to before h5.3.4.3500; h6.0.0.3324 to before h6.0.0.3397VulnerableQNAP
  • cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:* Versions 5.2.0.2737 to before 5.2.9.3410 Vulnerable ·QNAP
  • cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:* Versions h5.2.0.2737 to before h5.2.9.3410; h5.3.0.3115 to before h5.3.4.3500; h6.0.0.3324 to before h6.0.0.3397 Vulnerable ·QNAP

Remediation

  • Fix · CNA QTS (QNAP Systems Inc.) Fixed in 5.2.9.3410 build 20260214
  • Fix · CNA QuTS hero (QNAP Systems Inc.) Fixed in h5.2.9.3410 build 20260214, h5.3.4.3500 build 20260520, h6.0.0.3397 build 20260206

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    QNAP Systems QTS 5.2.9.3410 build 20260214

    6 records Highest priority Priority MEDIUM 3 MEDIUM, 3 LOW

    Other records, highest priority first

    Show all 6 records →
  • Release ·

    QNAP Systems QuTS hero h5.2.9.3410 build 20260214, h5.3.4.3500 build 20260520, h6.0.0.3397 build 20260206

    4 records Highest priority Priority MEDIUM 2 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2025-40757 OS command injection in QNAP QTSPriority MEDIUM 41
    • TI-2025-40759 NULL pointer dereference in QNAP QTSPriority LOW 37
    • TI-2025-40758 Stack-based buffer overflow in QNAP QTSPriority LOW 24
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-66273
  2. 2026-10-03 Alias added: GHSA-8g9p-fvw8-cwm4

References

Advisory 1

  • TI-2020-02221 Command Injection Vulnerability in QTS and QuTS hero KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05101 Improper input validation in QNAP NAS devices KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-14137 Improper input validation in QNAP QTS KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-14131 Cross-site scripting in QNAP QTS KEVCVSS 3.1HIGH 8.0
See all 282 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences