Critical severity9.8NVD Advisory· Published Feb 11, 2026· Updated Jun 17, 2026
CVE-2025-66277
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
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
41cpe:2.3:o:qnap:qts:5.2.0.2737:build_20240417:*:*:*:*:*:*+ 19 more
- cpe:2.3:o:qnap:qts:5.2.0.2737:build_20240417:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.0.2744:build_20240424:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.0.2782:build_20240601:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.0.2802:build_20240620:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.0.2823:build_20240711:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.0.2851:build_20240808:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.0.2860:build_20240817:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.1.2930:build_20241025:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.2.2950:build_20241114:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.3.3006:build_20250108:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.4.3070:build_20250312:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.4.3079:build_20250321:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.4.3092:build_20250403:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.5.3145:build_20250526:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.6.3195:build_20250715:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.6.3229:build_20250818:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.7.3256:build_20250913:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.7.3297:build_20251024:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.2.8.3332:build_20251128:*:*:*:*:*:*
- (no CPE)range: before 5.2.8.3350 build 20251216
cpe:2.3:o:qnap:quts_hero:h5.2.0.2737:build_20240417:*:*:*:*:*:*+ 18 more
- cpe:2.3:o:qnap:quts_hero:h5.2.0.2737:build_20240417:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.0.2782:build_20240601:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.0.2789:build_20240607:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.0.2802:build_20240620:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.0.2823:build_20240711:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.0.2851:build_20240808:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.0.2860:build_20240817:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.1.2929:build_20241025:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.1.2940:build_20241105:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.2.2952:build_20241116:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.3.3006:build_20250108:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.4.3070:build_20250312:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.4.3079:build_20250321:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.5.3138:build_20250519:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.6.3195:build_20250715:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.7.3256:build_20250913:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.7.3297:build_20251024:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.2.8.3321:build_20251117:*:*:*:*:*:*
- (no CPE)range: before h5.3.2.3354 build 20251225 and before h5.2.8.3350 build 20251216
- Range: 5.2.x
- Range: h5.3.x
Patches
Vulnerability mechanics
References
1- www.qnap.com/en/security-advisory/qsa-26-05nvdVendor Advisory
News mentions
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