{"id":"CVE-2026-18451","aliases":["EUVD-2026-110634","GHSA-3989-gjgc-5cm8"],"status":"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.","severity":{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00151,"percentile":0.04305,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-337"],"published":"2026-10-27T07:51:10Z","modified":"2026-11-04T14:59:34Z","products":[{"vendor":"smci","product":"mbd-x12spi"}],"references":[{"url":"https://www.supermicro.com/en/support/security_BMC_IPMI_Oct_2026_1"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18451"},{"url":"https://github.com/advisories/GHSA-3989-gjgc-5cm8"}],"sources":{"cve":[{"id":"CVE-2026-18451","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.","status":"published","published":"2026-10-27T07:51:10.336Z","modified":"2026-11-04T14:59:34.154Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-337"],"updated_at":"2026-11-04T15:32:52.167772Z"}],"euvd":[{"id":"EUVD-2026-110634","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.","status":"published","published":"2026-10-27T07:51:10Z","modified":"2026-11-04T14:59:34Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-04T16:10:35.925015Z"}],"ghsa":[{"id":"GHSA-3989-gjgc-5cm8","title":"The HTML5 KVM-over-IP console authenticates with a token returned by the web interface....","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.","status":"published","published":"2026-10-27T09:30:59Z","modified":"2026-10-27T09:30:59Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-337"],"updated_at":"2026-11-02T15:14:28.078787Z"}],"nvd":[{"id":"CVE-2026-18451","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.","status":"published","published":"2026-10-27T08:16:53.827Z","modified":"2026-11-04T15:17:44.417Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"low","assessor":"secondary"}],"cwes":["CWE-337"],"updated_at":"2026-11-04T18:06:23.753671Z"}]}}