{"id":"CVE-2026-26239","aliases":["EUVD-2026-35979","GHSA-82g9-7jh6-77wg"],"status":"published","title":"File Station 5","description":"A buffer overflow vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes.\n\nWe have already fixed the vulnerability in the following version:\nFile Station 5 5.5.6.5208 and later","severity":{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00421,"percentile":0.36715,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2026-06-10T03:15:18Z","modified":"2026-07-23T09:10:00Z","products":[{"vendor":"qnap","product":"file_station"},{"vendor":"qnap systems inc.","product":"file station 5"}],"references":[{"url":"https://www.qnap.com/en/security-advisory/qsa-26-10"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26239"},{"url":"https://www.qnap.com/en/security-advisory/qsa-26-37"},{"url":"https://github.com/advisories/GHSA-82g9-7jh6-77wg"}],"sources":{"cve":[{"id":"CVE-2026-26239","title":"File Station 5","description":"A buffer overflow vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes.\n\nWe have already fixed the vulnerability in the following version:\nFile Station 5 5.5.6.5208 and later","status":"published","published":"2026-06-10T03:15:18.196Z","modified":"2026-06-17T01:47:04.26Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U","level":"medium","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T13:38:20.971157Z"}],"euvd":[{"id":"EUVD-2026-35979","description":"A buffer overflow vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes.\n\nWe have already fixed the vulnerability in the following version:\nFile Station 5 5.5.6.5208 and later","status":"published","published":"2026-06-10T03:15:18Z","modified":"2026-06-17T01:47:04Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U","level":"medium"}],"updated_at":"2026-11-02T18:20:39.851172Z"}],"ghsa":[{"id":"GHSA-82g9-7jh6-77wg","title":"A buffer overflow vulnerability has been reported to affect File Station 5. If a remote attacker...","description":"A buffer overflow vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes.\n\nWe have already fixed the vulnerability in the following version:\nFile Station 5 5.5.6.5208 and later","status":"published","published":"2026-06-10T06:30:27Z","modified":"2026-06-17T18:35:20Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","level":"high"},{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:08:49.42455Z"}],"nvd":[{"id":"CVE-2026-26239","description":"A buffer overflow vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes.\n\nWe have already fixed the vulnerability in the following version:\nFile Station 5 5.5.6.5208 and later","status":"published","published":"2026-06-10T04:17:21.29Z","modified":"2026-07-23T09:10:00.113Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:12:23.485267Z"}]}}