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Unrated severityNVD Advisory· Published Feb 11, 2026· Updated Feb 26, 2026

QTS, QuTS hero

CVE-2025-66277

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

Affected products

4
  • Qnap/Qtsllm-fuzzy
    Range: <5.2.8.3350 build 20251216
  • Qnap/QuTS herollm-fuzzy
    Range: <h5.3.2.3354 build 20251225
  • QNAP Systems Inc./QTSv5
    Range: 5.2.x
  • QNAP Systems Inc./QuTS herov5
    Range: h5.3.x

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

1

News mentions

0

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