{"id":"CVE-2026-103665","aliases":[],"cve":{"records":[{"id":"CVE-2026-103665","source":"jpcert","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-13T04:12:30.195Z","published":"2026-10-29T11:33:30.885Z","modified":"2026-10-29T14:10:50.402Z"}],"publishers":[{"name":"jpcert","role":"CNA","organizationId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","modified":"2026-10-29T11:33:30.885Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-29T14:10:50.402Z"}],"references":[{"url":"https://www.rtpro.yamaha.co.jp/RT/FAQ/Security/JVN23695234.html","tags":[],"source":"jpcert"},{"url":"https://jvn.jp/en/jp/JVN23695234/","tags":[],"source":"jpcert"}],"weaknesses":[{"id":"CWE-427","description":"Uncontrolled Search Path Element","source":"jpcert"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-29T14:10:35.298179Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"The installer for Yamaha LAN Monitor for Windows provided by Yamaha Corporation may insecurely load Dynamic Link Libraries (DLLs).","titleSource":"jpcert","descriptionSource":"jpcert","description":"The installer for Yamaha LAN Monitor for Windows provided by Yamaha Corporation may insecurely load Dynamic Link Libraries (DLLs). When the installer is launched in a directory containing a specially crafted DLL file, the malicious DLL may be loaded, resulting in arbitrary code execution with administrative privileges.","score":8.4,"severity":"high","published":"2026-10-29T11:33:30.885Z","modified":"2026-10-29T14:10:50.402Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Yamaha Corporation","name":"Yamaha LAN Monitor for Windows","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"Ver.1.9.3","versionType":"semver"}],"defaultStatus":"unaffected","cpes":[],"source":"jpcert","url":"https://www.cve.org/CVERecord?id=CVE-2026-103665"}],"remediation":[],"references":["https://www.rtpro.yamaha.co.jp/RT/FAQ/Security/JVN23695234.html","https://jvn.jp/en/jp/JVN23695234/"],"sources":[{"name":"CVE","id":"CVE-2026-103665","modified":"2026-10-29T14:10:50.402Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-103665"}],"assessments":[{"source":"jpcert","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},{"source":"jpcert","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.4}],"sourceAffected":[],"observedAt":"2026-10-29T14:27:58.158Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T18:55:34.234Z"},"coverage":[{"source":"NVD","status":"no-result","checkedAt":"2026-10-29T11:45:36.809Z","attemptedAt":"2026-10-29T11:45:36.809Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-29T11:45:36.587Z","attemptedAt":"2026-10-29T11:45:36.587Z"},{"source":"EUVD","status":"refresh-failed","attemptedAt":"2026-10-29T11:45:35.873Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-29T11:45:36.546Z","attemptedAt":"2026-10-29T11:45:36.546Z"}],"evidence":[],"aiSummary":{"text":"The Yamaha LAN Monitor for Windows installer may load DLLs insecurely, potentially allowing arbitrary code execution with administrative privileges if run in a directory with a malicious DLL. Affected versions are Ver.1.9.3 and earlier. An attacker would need access to the directory where the installer is launched.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:33:06.357Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-103665"}]}}