{"id":"CVE-2021-26563","aliases":["EUVD-2021-13361","GHSA-ppq5-6h29-8hm2"],"status":"published","title":"Improper access control vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM)...","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.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00513,"percentile":0.44202,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2021-02-26T21:45:33Z","modified":"2026-06-17T03:43:29Z","products":[{"vendor":"synology","product":"diskstation manager (dsm)"},{"vendor":"synology","product":"diskstation_manager"},{"vendor":"synology","product":"diskstation_manager_unified_controller"},{"vendor":"synology","product":"skynas_firmware"},{"vendor":"synology","product":"vs960hd_firmware"}],"references":[{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1158","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.synology.com/security/advisory/Synology_SA_21_03","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26563"},{"url":"https://www.synology.com/security/advisory/Synology_SA_20_26"},{"url":"https://github.com/advisories/GHSA-ppq5-6h29-8hm2"}],"sources":{"cve":[{"id":"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.","status":"published","published":"2021-02-26T21:45:33.039Z","modified":"2024-09-16T16:23:45.14Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13361","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.","status":"published","published":"2021-02-26T21:45:33Z","modified":"2024-09-16T16:23:45Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:55:52.084115Z"}],"ghsa":[{"id":"GHSA-ppq5-6h29-8hm2","title":"Improper access control vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM)...","description":"Improper access control vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows local users to obtain sensitive information via a crafted kernel module.","status":"published","published":"2022-05-24T17:43:19Z","modified":"2023-01-29T05:06:42Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:46:04.961867Z"}],"nvd":[{"id":"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.","status":"published","published":"2021-02-26T22:15:20.143Z","modified":"2026-06-17T03:43:29.047Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:06:50.399901Z"}]}}