CVE-2026-16140

OpenBMC IPMI Privilege Escalation via Retargeted RAKP 1

Published Sep 15, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Openbmc
Openbmc phosphor-net-ipmid
Vendors & Products Openbmc
Openbmc phosphor-net-ipmid
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title OpenBMC IPMI Privilege Escalation via Retargeted RAKP 1
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
runZero
Published
Updated
Sep 15, 2026, 3:00 PM
Reserved
Jul 17, 2026, 5:17 PM
Status
Awaiting Analysis
Published
Sep 15, 2026, 2:16 PM
Modified
Sep 18, 2026, 7:30 PM