{"id":"CVE-2026-78403","published":"2026-10-30T20:17:17Z","modified":"2026-10-30T20:17:17Z","title":"Stack-based buffer overflow and missing authorization vulnerability in Thales Sentinel Keys Server on Windows allows…","vendor":"Thalesgroup","product":"Sentinel Keys Server","tier":"core","eol":null,"description":{"text":"Stack-based buffer overflow and missing\nauthorization vulnerability in Thales Sentinel Keys Server on Windows allows\nOverflow Buffers. Sentinel Keys Server does not check the length of the first\nfield in the HTTP request. An attacker may craft an HTTP request and send it to\nSentinel Keys Server. It may lead to remote code execution as NT\nAUTHORITY\\SYSTEM.\n\n\n\n\n\nThis issue affects Sentinel Keys Server:\nversions lower than 1.3.8.0.","provenance":"source","from":"NVD"},"summary":null,"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.00577,"percentile":0.47562,"date":"2026-10-31","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":0,"pulses":[],"provenance":"machine"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"},{"id":"CWE-862","name":"Missing Authorization"}],"references":[{"url":"https://supportportal.thalesgroup.com/csm?id=kb_article_view&sys_kb_id=50fc9f3b3b005f10bba8b41864e45a61&sysparm_article=KB0031216","tags":[]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-114364","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-114364","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2026-10-30","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78403","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":16.4,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":9.51,"detail":"percentile 0.4756"},{"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":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}