{"id":"CVE-2025-54166","aliases":["EUVD-2026-0675","GHSA-xj99-2m32-jhvv"],"status":"published","title":"QTS, QuTS hero","description":"An out-of-bounds read vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.7.3256 build 20250913 and later\nQuTS hero h5.2.7.3256 build 20250913 and later\nQuTS hero h5.3.1.3250 build 20250912 and later","severity":{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00339,"percentile":0.27538,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-01-02T14:57:05Z","modified":"2026-10-14T13:10:00Z","products":[{"vendor":"qnap","product":"qts"},{"vendor":"qnap","product":"quts_hero"},{"vendor":"qnap systems inc.","product":"qts"},{"vendor":"qnap systems inc.","product":"quts hero"}],"references":[{"url":"https://www.qnap.com/en/security-advisory/qsa-25-50","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-54166"},{"url":"https://github.com/advisories/GHSA-xj99-2m32-jhvv"}],"sources":{"cve":[{"id":"CVE-2025-54166","title":"QTS, QuTS hero","description":"An out-of-bounds read vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.7.3256 build 20250913 and later\nQuTS hero h5.2.7.3256 build 20250913 and later\nQuTS hero h5.3.1.3250 build 20250912 and later","status":"published","published":"2026-01-02T14:57:05.534Z","modified":"2026-01-02T19:16:09.64Z","cvss":[{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U","level":"medium","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:32:27.603809Z"}],"euvd":[{"id":"EUVD-2026-0675","description":"An out-of-bounds read vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.7.3256 build 20250913 and later\nQuTS hero h5.2.7.3256 build 20250913 and later\nQuTS hero h5.3.1.3250 build 20250912 and later","status":"published","published":"2026-01-02T14:57:05Z","modified":"2026-01-02T19:16:09Z","cvss":[{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U","level":"medium"}],"updated_at":"2026-11-02T19:48:56.284833Z"}],"ghsa":[{"id":"GHSA-xj99-2m32-jhvv","title":"An out-of-bounds read vulnerability has been reported to affect several QNAP operating system...","description":"An out-of-bounds read vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.7.3256 build 20250913 and later\nQuTS hero h5.2.7.3256 build 20250913 and later\nQuTS hero h5.3.1.3250 build 20250912 and later","status":"published","published":"2026-01-02T15:30:31Z","modified":"2026-01-05T21:30:31Z","cvss":[{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/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"},{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:05:29.894873Z"}],"nvd":[{"id":"CVE-2025-54166","description":"An out-of-bounds read vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.7.3256 build 20250913 and later\nQuTS hero h5.2.7.3256 build 20250913 and later\nQuTS hero h5.3.1.3250 build 20250912 and later","status":"published","published":"2026-01-02T15:16:03.107Z","modified":"2026-10-14T13:10:00.187Z","cvss":[{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/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":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:11:54.323368Z"}]}}