{"id":"CVE-2025-30267","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-30267","generatedAt":"2026-10-28T03:30:14.532Z","title":"A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.","description":"A NULL pointer dereference 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 launch a denial-of-service (DoS) attack.\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","published":"2025-08-29T18:15:39.000Z","lastModified":"2026-09-26T00:10:00.000Z","status":"Analyzed","sourceIdentifier":"security@qnapsecurity.com.tw","cvss":{"version":"4.0","score":5.3,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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/M"},"cwe":["CWE-476"],"affected":["qnap/qts","qnap/quts hero"],"epss":{"score":0.00373,"percentile":0.3098,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.37%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.qnap.com/en/security-advisory/qsa-25-21","tags":["Vendor Advisory"],"source":"security@qnapsecurity.com.tw"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-30267","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}