{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21427","assignerOrgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","state":"PUBLISHED","assignerShortName":"jpcert","dateReserved":"2025-12-25T00:23:40.578Z","datePublished":"2026-01-08T04:12:21.781Z","dateUpdated":"2026-01-22T07:03:11.927Z"},"containers":{"cna":{"affected":[{"vendor":"PIONEER CORPORATION","product":"USB DAC Amplifier APS-DA101JS","versions":[{"version":"all versions","status":"affected"}]},{"vendor":"PIONEER CORPORATION","product":"USB DAC Amplifier APS-DA101JR","versions":[{"version":"all versions","status":"affected"}]},{"vendor":"PIONEER CORPORATION","product":"USB DAC Amplifier APS-DA101JGL","versions":[{"version":"all versions","status":"affected"}]},{"vendor":"PIONEER CORPORATION","product":"USB DAC Amplifier APS-DA101JGR","versions":[{"version":"all versions","status":"affected"}]},{"vendor":"PIONEER CORPORATION","product":"Stellanova Lite APS-S201JS","versions":[{"version":"all versions","status":"affected"}]},{"vendor":"PIONEER CORPORATION","product":"Stellanova Lite APS-S201JR","versions":[{"version":"all versions","status":"affected"}]},{"vendor":"PIONEER CORPORATION","product":"Stellanova Lite APS-S201JGL","versions":[{"version":"all versions","status":"affected"}]},{"vendor":"PIONEER CORPORATION","product":"Stellanova Lite APS-S201JGR","versions":[{"version":"all versions","status":"affected"}]},{"vendor":"PIONEER CORPORATION","product":"Stellanova Limited APS-S202J-LM","versions":[{"version":"all versions","status":"affected"}]},{"vendor":"PIONEER CORPORATION","product":"Stellanova APS-S301 series","versions":[{"version":"all versions","status":"affected"}]}],"descriptions":[{"lang":"en","value":"The installers for multiple products provided by PIONEER CORPORATION contain an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries. As a result,  arbitrary code may be executed with the privileges of the running installer."}],"problemTypes":[{"descriptions":[{"description":"Uncontrolled Search Path Element","lang":"en-US","cweId":"CWE-427","type":"CWE"}]}],"references":[{"url":"https://jpn.pioneer/ja/support/software/stellanova/dac_driver/"},{"url":"https://jvn.jp/en/jp/JVN17956874/"}],"tags":["unsupported-when-assigned"],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_0":{"version":"3.0","baseSeverity":"HIGH","baseScore":7.8,"vectorString":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}},{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV4_0":{"version":"4.0","baseSeverity":"HIGH","baseScore":8.5,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}],"providerMetadata":{"orgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","shortName":"jpcert","dateUpdated":"2026-01-22T07:03:11.927Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-08T15:52:49.936381Z","id":"CVE-2026-21427","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":"2026-01-08T15:52:56.950Z"}}]}}