{"id":"CVE-2025-30273","aliases":["EUVD-2025-27787","GHSA-2fcj-xjq4-c3h8"],"status":"published","title":"QTS, QuTS hero","description":"An out-of-bounds write vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify or corrupt memory.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.5.3145 build 20250526 and later\nQuTS hero h5.2.5.3138 build 20250519 and later","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00383,"percentile":0.32714,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2025-08-29T17:16:27Z","modified":"2026-09-26T00:32:27Z","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-25-21","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-30273"},{"url":"https://github.com/advisories/GHSA-2fcj-xjq4-c3h8"}],"sources":{"cve":[{"id":"CVE-2025-30273","title":"QTS, QuTS hero","description":"An out-of-bounds write vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify or corrupt memory.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.5.3145 build 20250526 and later\nQuTS hero h5.2.5.3138 build 20250519 and later","status":"published","published":"2025-08-29T17:16:27.21Z","modified":"2025-08-29T18:22:44.93Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:32:35.418416Z"}],"euvd":[{"id":"EUVD-2025-27787","description":"An out-of-bounds write vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify or corrupt memory.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.5.3145 build 20250526 and later\nQuTS hero h5.2.5.3138 build 20250519 and later","status":"published","published":"2025-08-29T17:16:27Z","modified":"2025-08-29T18:22:44Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T20:31:49.600955Z"}],"ghsa":[{"id":"GHSA-2fcj-xjq4-c3h8","title":"An out-of-bounds write vulnerability has been reported to affect several QNAP operating system...","description":"An out-of-bounds write vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify or corrupt memory.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.5.3145 build 20250526 and later\nQuTS hero h5.2.5.3138 build 20250519 and later","status":"published","published":"2025-08-29T18:30:53Z","modified":"2026-09-26T00:32:27Z","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":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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-787"],"updated_at":"2026-11-02T15:12:27.845198Z"}],"nvd":[{"id":"CVE-2025-30273","description":"An out-of-bounds write vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify or corrupt memory.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.5.3145 build 20250526 and later\nQuTS hero h5.2.5.3138 build 20250519 and later","status":"published","published":"2025-08-29T18:15:39.77Z","modified":"2026-09-26T00:10:00.127Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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","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-787"],"updated_at":"2026-11-02T14:11:26.200344Z"}]}}