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High severity7.2NVD Advisory· Published Jun 10, 2026· Updated Jun 15, 2026

CVE-2025-66273

CVE-2025-66273

Description

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

Affected products

4
  • Qnap/Qtsllm-fuzzy2 versions
    <5.2.9.3410+ 1 more
    • (no CPE)range: <5.2.9.3410
    • cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*range: >=5.2.0.2737,<5.2.9.3410
  • Qnap/Quts Herollm-fuzzy2 versions
    <h5.2.9.3410, <h5.3.4.3500, <h6.0.0.3397+ 1 more
    • (no CPE)range: <h5.2.9.3410, <h5.3.4.3500, <h6.0.0.3397
    • cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*range: >=h5.2.0.2737,<h5.2.9.3410

Patches

Vulnerability mechanics

References

1

News mentions

4