{"id":"CVE-2026-18451","state":"PUBLISHED","title":"Supermicro BMC's iKVM feature is vulnerable to KVM session hijacking due to a predictable time-seeded launch token","description":"The HTML5 KVM-over-IP console authenticates with a token returned by the web interface. Weaknesses in token generation may allow an attacker to guess the session token and take control of the KVM session.","publishedAt":"2026-10-27T07:51:10.336Z","updatedAt":"2026-10-27T07:51:10.336Z","severity":{"score":3.1,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","source":"Supermicro"},"assigner":"Supermicro","products":["SMCI MBD-X12SPI"],"affected":[{"vendor":"SMCI","product":"MBD-X12SPI","defaultStatus":"affected","versions":[{"version":"01.07.20","status":"affected","versionType":"custom"}],"platforms":["BMC"]}],"references":["https://www.supermicro.com/en/support/security_BMC_IPMI_Oct_2026_1"],"weaknesses":["CWE-337"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/18xxx/CVE-2026-18451.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18451","state":"PUBLISHED","datePublished":"2026-10-27T07:51:10.336Z","dateUpdated":"2026-10-27T07:51:10.336Z","assignerShortName":"Supermicro","assignerOrgId":"def9a96e-e099-41a9-bfac-30fd4f82c411","dateReserved":"2026-07-31T05:37:17.153Z"},"containers":{"cna":{"title":"Supermicro BMC's iKVM feature is vulnerable to KVM session hijacking due to a predictable time-seeded launch token","descriptions":[{"lang":"en","value":"The HTML5 KVM-over-IP console authenticates with a token returned by the web interface. Weaknesses in token generation may allow an attacker to guess the session token and take control of the KVM session."}],"affected":[{"vendor":"SMCI","product":"MBD-X12SPI","defaultStatus":"affected","versions":[{"version":"01.07.20","status":"affected","versionType":"custom"}],"platforms":["BMC"]}],"references":[{"url":"https://www.supermicro.com/en/support/security_BMC_IPMI_Oct_2026_1"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE","baseSeverity":"LOW","baseScore":3.1,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-337","lang":"en","description":"CWE-337: Predictable Seed in a Pseudo-Random Number Generator (PRNG)","type":"CWE"}]}],"providerMetadata":{"shortName":"Supermicro","orgId":"def9a96e-e099-41a9-bfac-30fd4f82c411","dateUpdated":"2026-10-27T07:51:10.336Z"},"impacts":[{"capecId":"CAPEC-59","descriptions":[{"lang":"en","value":"CAPEC-59: Session Hijacking"}]}],"credits":[{"lang":"en","value":"runZero","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}}}}}