CVE-2026-16140

{"id": "CVE-2026-16140", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-16140", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-09-15T15:00:05.940086Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "44488dab-36db-4358-99f9-bc116477f914", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "44488dab-36db-4358-99f9-bc116477f914", "affectedData": [{"repo": "https://github.com/openbmc/phosphor-net-ipmid", "vendor": "OpenBMC", "product": "phosphor-net-ipmid", "versions": [{"status": "affected", "version": "0", "versionType": "git", "lessThanOrEqual": "ba6efc502e6b1fabb8ed1ca677ae5eedd64b6361"}], "defaultStatus": "unaffected"}]}], "published": "2026-09-15T14:16:50.290", "references": [{"url": "https://www.runzero.com/advisories/openbmc-ipmi-privsec-rakp-cve-2026-16140/", "source": "44488dab-36db-4358-99f9-bc116477f914"}, {"url": "https://www.runzero.com/blog/lights-out-exposed/", "source": "44488dab-36db-4358-99f9-bc116477f914"}], "vulnStatus": "Received", "weaknesses": [{"type": "Secondary", "source": "44488dab-36db-4358-99f9-bc116477f914", "description": [{"lang": "en", "value": "CWE-863"}]}], "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."}], "lastModified": "2026-09-15T15:17:13.270", "sourceIdentifier": "44488dab-36db-4358-99f9-bc116477f914"}