What’s Vulnerable › Vulnerabilities

CVE-2026-16140: OpenBMC IPMI Privilege Escalation via Retargeted RAKP 1

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-15 · updated 2026-09-18
• Weakness: CWE-863

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.

References

• https://www.runzero.com/advisories/openbmc-ipmi-privsec-rakp-cve-2026-16140/
• https://www.runzero.com/blog/lights-out-exposed/

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