{"id":"CVE-2021-29087","aliases":["EUVD-2021-15728","GHSA-9977-6673-28cw"],"status":"published","title":"Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in...","description":"Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to write arbitrary files via unspecified vectors.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01396,"percentile":0.72803,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2021-06-23T09:55:11Z","modified":"2026-06-17T03:47:16Z","products":[{"vendor":"synology","product":"diskstation manager (dsm)"},{"vendor":"synology","product":"diskstation_manager"},{"vendor":"synology","product":"diskstation_manager_unified_controller"}],"references":[{"url":"https://www.synology.com/security/advisory/Synology_SA_20_26","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29087"},{"url":"https://github.com/advisories/GHSA-9977-6673-28cw"}],"sources":{"cve":[{"id":"CVE-2021-29087","description":"Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to write arbitrary files via unspecified vectors.","status":"published","published":"2021-06-23T09:55:11.434Z","modified":"2024-09-16T19:57:04.894Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:33:06.32268Z"}],"euvd":[{"id":"EUVD-2021-15728","description":"Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to write arbitrary files via unspecified vectors.","status":"published","published":"2021-06-23T09:55:11Z","modified":"2024-09-16T19:57:04Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T00:55:18.167658Z"}],"ghsa":[{"id":"GHSA-9977-6673-28cw","title":"Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in...","description":"Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to write arbitrary files via unspecified vectors.","status":"published","published":"2022-05-24T19:05:59Z","modified":"2025-01-14T21:32:48Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:59:31.794566Z"}],"nvd":[{"id":"CVE-2021-29087","description":"Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to write arbitrary files via unspecified vectors.","status":"published","published":"2021-06-23T10:15:08.473Z","modified":"2026-06-17T03:47:16.447Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:06:54.892562Z"}]}}