Critical severity9.8NVD Advisory· Published Mar 12, 2021· Updated Jun 17, 2026
CVE-2021-27647
CVE-2021-27647
Description
Out-of-bounds Read vulnerability in iscsi_snapshot_comm_core in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via crafted web requests.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*range: <6.2.3-25426-3
- (no CPE)range: <6.2.3-25426-3
- (no CPE)range: unspecified
Patches
Vulnerability mechanics
References
2- www.synology.com/security/advisory/Synology_SA_20_26nvdVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-21-339/nvdThird Party AdvisoryVDB Entry
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