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Critical9.8Synology

Critical [CVE-2025-12686] Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in AdminCenter in Synology BeeStation OS before 1.3.2-65648 allows remote attackers to execute arbitrary code via unspecified vectors

This critical-severity Synology advisory covers CVE-2025-12686 affecting BeeStation OS 1.3, BeeStation OS 1.2, BeeStation OS 1.1.

Synology-SA-25:12 Published May 27, 2026Updated by vendor Jun 17, 2026
Affected products & platforms
SynologyBeeStation
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Summary

Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in AdminCenter in Synology BeeStation OS before 1.3.2-65648 allows remote attackers to execute arbitrary code via unspecified vectors.

Affected products named by the advisory: BeeStation OS 1.3; BeeStation OS 1.2; BeeStation OS 1.1; BeeStation OS 1.0.

Affected versions
  • before 1.3.2-65648

Official advisory · high-confidence parse· fetched 1 month ago·verify at source

Fixed versions
  • 1.3.2-65648

Official advisory · high-confidence parse· fetched 1 month ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Upgrade the affected Synology product to a fixed release: 1.3.2-65648.

Official advisory · high-confidence parse· fetched 1 month ago·verify at source

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