{"id":"CVE-2023-39296","published":"2024-01-05T16:19:20Z","modified":"2025-06-03T14:41:20Z","title":"QTS, QuTS hero","vendor":"QNAP Systems Inc.","product":"QTS","tier":"core","eol":null,"affectedVersions":[{"vendor":"QNAP Systems Inc.","product":"QTS","versions":[">= 5.1.x, < 5.1.3.2578 build 20231110"]},{"vendor":"QNAP Systems Inc.","product":"QuTS hero","versions":[">= h5.1.x, < h5.1.3.2578 build 20231110"]}],"description":{"text":"A prototype pollution vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to override existing attributes with ones that have incompatible type, which may lead to a crash via a network.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.1.3.2578 build 20231110 and later\nQuTS hero h5.1.3.2578 build 20231110 and later\n","provenance":"source","from":"CVE.org"},"summary":null,"cvss":{"score":7.5,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.01564,"percentile":0.75222,"date":"2026-10-29","provenance":"source"},"kev":null,"vulncheckKev":{"dateAdded":"2024-03-24","exploitedFirstSeen":"2024-03-24","ransomware":false,"evidence":[{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-03-24&host_type=src&vulnerability=cve-2023-39296","date":"2024-03-24"}],"evidenceTotal":1,"provenance":"source"},"exploited":true,"otx":{"pulseCount":0,"pulses":[],"provenance":"machine"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"references":[{"url":"https://www.qnap.com/en/security-advisory/qsa-23-64","tags":[]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2023-43028","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-43028","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2024-01-05","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2023-39296","provenance":"source"},{"date":"2024-03-24","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-03-24&host_type=src&vulnerability=cve-2023-39296","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":55.3,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 949 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":15.04,"detail":"percentile 0.7522"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":5.25,"detail":"base score 7.5"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}