{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-78402","assignerOrgId":"9d5917ae-205d-4ae5-8749-1f49479b1395","state":"PUBLISHED","assignerShortName":"THA-PSIRT","dateReserved":"2026-08-24T14:22:03.585Z","datePublished":"2026-10-30T19:11:53.889Z","dateUpdated":"2026-10-30T20:00:42.731Z"},"containers":{"cna":{"providerMetadata":{"orgId":"9d5917ae-205d-4ae5-8749-1f49479b1395","shortName":"THA-PSIRT","dateUpdated":"2026-10-30T19:47:48.568Z"},"title":"Stack Buffer Overflow in Sentinel Keys Server","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-121","description":"CWE-121 Stack-based buffer overflow","type":"CWE"}]},{"descriptions":[{"lang":"en","cweId":"CWE-787","description":"CWE-787 Out-of-bounds write","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-100","descriptions":[{"lang":"en","value":"CAPEC-100 Overflow Buffers"}]}],"affected":[{"vendor":"Thalesgroup","product":"Sentinel Keys Server","platforms":["Windows"],"versions":[{"status":"affected","version":"0","lessThan":"1.3.8.0","versionType":"custom"}],"defaultStatus":"unaffected"}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:thalesgroup:sentinel_keys_server:*:*:windows:*:*:*:*:*","versionStartIncluding":"0","versionEndExcluding":"1.3.8.0"}]}]}],"descriptions":[{"lang":"en","value":"Stack-based buffer overflow and out-of-bounds\nwrite vulnerability in Thales Sentinel Keys Server on Windows allows Overflow\nBuffers. \n\n\n\nSentinel Keys Server does not check the length of the first field in\nthe input message. A local attacker may craft an input and send it to Sentinel\nKeys Server. It may lead to code execution as NT AUTHORITY\\SYSTEM enabling\nlocal privilege escalation.\n\n\n\n\n\nThis issue affects Sentinel Keys Server: versions\nlower than 1.3.8.0.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Stack-based buffer overflow and out-of-bounds\nwrite vulnerability in Thales Sentinel Keys Server on Windows allows Overflow\nBuffers.&nbsp;</p><p>Sentinel Keys Server does not check the length of the first field in\nthe input message. A local attacker may craft an input and send it to Sentinel\nKeys Server. It may lead to code execution as NT AUTHORITY\\SYSTEM enabling\nlocal privilege escalation.</p><p>\n\nThis issue affects Sentinel Keys Server: versions\nlower than 1.3.8.0.</p>"}]}],"references":[{"url":"https://supportportal.thalesgroup.com/csm?id=kb_article_view&sys_kb_id=50fc9f3b3b005f10bba8b41864e45a61&sysparm_article=KB0031216","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":7.3,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":7.8,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}}],"solutions":[{"lang":"en","value":"Upgrade latest version.","supportingMedia":[{"type":"text/html","base64":false,"value":"Upgrade latest version."}]}],"credits":[{"lang":"en","value":"Matt Hetelson (matthew.hetelson@revolutional.com)","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-30T20:00:33.506955Z","id":"CVE-2026-78402","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-30T20:00:42.731Z"}}]}}