{"id":"CVE-2021-26567","aliases":["EUVD-2021-13365","GHSA-f4px-mf48-4h8c"],"status":"published","title":"Use of unmaintained third party components vulnerability in faad in Synology DiskStation Manager ...","description":"Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1 allow local attackers to execute arbitrary code via filename and pathname options.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01129,"percentile":0.66827,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2021-02-26T21:45:35Z","modified":"2026-10-20T14:17:25Z","products":[{"vendor":"faad2_project","product":"faad2"},{"vendor":"github/knik0","product":"faad2"},{"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.synology.com/security/advisory/Synology_SA_20_26","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://github.com/knik0/faad2/commit/720f7004d6c4aabee19aad16e7c456ed76a3ebfa","tags":["x_refsource_MISC","x_transferred","Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26567"},{"url":"https://github.com/advisories/GHSA-f4px-mf48-4h8c"}],"sources":{"cve":[{"id":"CVE-2021-26567","description":"Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1 allow local attackers to execute arbitrary code via filename and pathname options.","status":"published","published":"2021-02-26T21:45:35.788Z","modified":"2024-09-16T19:56:15.211Z","cwes":["CWE-121"],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13365","description":"Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1 allow local attackers to execute arbitrary code via filename and pathname options.","status":"published","published":"2021-02-26T21:45:35Z","modified":"2024-09-16T19:56:15Z","updated_at":"2026-11-03T00:55:18.708292Z"}],"ghsa":[{"id":"GHSA-f4px-mf48-4h8c","title":"Use of unmaintained third party components vulnerability in faad in Synology DiskStation Manager ...","description":"Use of unmaintained third party components vulnerability in faad in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote authenticated users to execute arbitrary code via a crafted file path.","status":"published","published":"2022-05-24T17:43:20Z","modified":"2023-06-27T23:07:44Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:54:39.385813Z"}],"nvd":[{"id":"CVE-2021-26567","description":"Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1 allow local attackers to execute arbitrary code via filename and pathname options.","status":"published","published":"2021-02-26T22:15:20.707Z","modified":"2026-06-17T03:43:29.513Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:06:50.399901Z"}],"osv":[{"id":"CVE-2021-26567","description":"Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1 allow local attackers to execute arbitrary code via filename and pathname options.","status":"published","published":"2021-02-26T22:15:20.707Z","modified":"2026-10-20T14:17:25.642003076Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:18.778776Z"}]}}