{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-16140","assignerOrgId":"44488dab-36db-4358-99f9-bc116477f914","state":"PUBLISHED","assignerShortName":"runZero","dateReserved":"2026-07-17T17:17:23.941Z","datePublished":"2026-09-15T13:57:19.310Z","dateUpdated":"2026-09-15T15:00:15.848Z"},"containers":{"cna":{"providerMetadata":{"orgId":"44488dab-36db-4358-99f9-bc116477f914","shortName":"runZero","dateUpdated":"2026-09-15T14:00:38.029Z"},"title":"OpenBMC IPMI Privilege Escalation via Retargeted RAKP 1","datePublic":"2026-09-15T14:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-863","description":"CWE-863 Incorrect Authorization","type":"CWE"}]}],"affected":[{"vendor":"OpenBMC","product":"phosphor-net-ipmid","repo":"https://github.com/openbmc/phosphor-net-ipmid","versions":[{"status":"affected","version":"0","lessThanOrEqual":"ba6efc502e6b1fabb8ed1ca677ae5eedd64b6361","versionType":"git"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"OpenBMC's IPMI implementation, phosphor-net-ipmid, is vulnerable to a logic flaw where the authorization context of an existing session can be replaced with a target account while still maintaining the original integrity and encryption keys. Several downstream vendors implement phosphor-net-ipmid as their IPMI stack, such as NVIDIA and H3C. This issue effectively allows for privilege escalation without re-authentication.","supportingMedia":[{"type":"text/html","base64":false,"value":"OpenBMC's IPMI implementation, phosphor-net-ipmid, is vulnerable to a logic flaw where the authorization context of an existing session can be replaced with a target account while still maintaining the original integrity and encryption keys. Several downstream vendors implement phosphor-net-ipmid as their IPMI stack, such as NVIDIA and H3C. This issue effectively allows for privilege escalation without re-authentication."}]}],"references":[{"url":"https://www.runzero.com/advisories/openbmc-ipmi-privsec-rakp-cve-2026-16140/","tags":["third-party-advisory"]},{"url":"https://www.runzero.com/blog/lights-out-exposed/","tags":["related"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":8.8,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}}],"credits":[{"lang":"en","value":"HD Moore of runZero","type":"finder"},{"lang":"en","value":"Gadi Evron of Knostic","type":"finder"},{"lang":"en","value":"Tod Beardsley of runZero","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-15T15:00:05.940086Z","id":"CVE-2026-16140","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":"2026-09-15T15:00:15.848Z"}}]}}