{"id":"CVE-2021-34811","aliases":["EUVD-2021-21458","GHSA-h4r4-pw7f-hp8j"],"status":"published","title":"Server-Side Request Forgery (SSRF) vulnerability in task management component in Synology...","description":"Server-Side Request Forgery (SSRF) vulnerability in task management component in Synology Download Station before 3.8.16-3566 allows remote authenticated users to access intranet resources via unspecified vectors.","severity":{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00764,"percentile":0.55742,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2021-06-18T03:00:18Z","modified":"2026-06-17T03:56:36Z","products":[{"vendor":"qnap systems inc.","product":"download station"},{"vendor":"synology","product":"download station"},{"vendor":"synology","product":"download_station"}],"references":[{"url":"https://www.synology.com/security/advisory/Synology_SA_21_11","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34811"},{"url":"https://github.com/advisories/GHSA-h4r4-pw7f-hp8j"}],"sources":{"cve":[{"id":"CVE-2021-34811","description":"Server-Side Request Forgery (SSRF) vulnerability in task management component in Synology Download Station before 3.8.16-3566 allows remote authenticated users to access intranet resources via unspecified vectors.","status":"published","published":"2021-06-18T03:00:18.181Z","modified":"2024-09-16T17:48:15.12Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2021-21458","description":"Server-Side Request Forgery (SSRF) vulnerability in task management component in Synology Download Station before 3.8.16-3566 allows remote authenticated users to access intranet resources via unspecified vectors.","status":"published","published":"2021-06-18T03:00:18Z","modified":"2024-09-16T17:48:15Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:55:38.742114Z"}],"ghsa":[{"id":"GHSA-h4r4-pw7f-hp8j","title":"Server-Side Request Forgery (SSRF) vulnerability in task management component in Synology...","description":"Server-Side Request Forgery (SSRF) vulnerability in task management component in Synology Download Station before 3.8.16-3566 allows remote authenticated users to access intranet resources via unspecified vectors.","status":"published","published":"2022-05-24T19:05:40Z","modified":"2023-01-29T05:07:02Z","cwes":["CWE-918"],"updated_at":"2026-11-02T14:46:08.723565Z"}],"nvd":[{"id":"CVE-2021-34811","description":"Server-Side Request Forgery (SSRF) vulnerability in task management component in Synology Download Station before 3.8.16-3566 allows remote authenticated users to access intranet resources via unspecified vectors.","status":"published","published":"2021-06-18T03:15:06.943Z","modified":"2026-06-17T03:56:36.783Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:06:54.892562Z"}]}}