OpenBMC IPMI Privilege Escalation via Retargeted RAKP 1

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.

Scores

EPSS (exploitation in 30 days)

0.39% · top 67% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.

Weakness

• CWE-863 Incorrect Authorization (opens in a new tab)All about CWE-863 and its CVEs

Affected products

• OpenBMC · phosphor-net-ipmid

  • affected ≤ ba6efc502e6b1fabb8ed1ca677ae5eedd64b6361

References (2)

• https://www.runzero.com/advisories/openbmc-ipmi-privsec-rakp-cve-2026-16140/ (opens in a new tab)third-party-advisory
• https://www.runzero.com/blog/lights-out-exposed/ (opens in a new tab)related

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-16140](https://trackcve.app/badge/CVE-2026-16140.svg)](https://trackcve.app/cve/CVE-2026-16140)

Record last updated 15 Sept 2026, 15:00 UTC.