High severity8.2NVD Advisory· Published Feb 26, 2021· Updated Jun 17, 2026
CVE-2021-26563
CVE-2021-26563
Description
Incorrect authorization vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.4-25553 allows local users to execute arbitrary code via unspecified vectors.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*range: <6.2.4-25553
- (no CPE)range: <6.2.4-25553
- (no CPE)range: unspecified
- cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:synology:skynas_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:synology:diskstation_manager_unified_controller:3.0:*:*:*:*:*:*:*
- Range: <6.2.4-25553
Patches
Vulnerability mechanics
References
2- www.talosintelligence.com/vulnerability_reports/TALOS-2020-1158nvdExploitThird Party Advisory
- www.synology.com/security/advisory/Synology_SA_21_03nvdVendor Advisory
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