CVE-2026-16140

Published: Sep 15, 2026Modified: Sep 18, 2026

8.8

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 2.8 / Impact: 5.9

Source: 44488dab-36db-4358-99f9-bc116477f914 (Secondary)

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.

Related CWEs

CWE-863

Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (2)

https://www.runzero.com/advisories/openbmc-ipmi-privsec-rakp-cve-2026-16140/

Source: 44488dab-36db-4358-99f9-bc116477f914

https://www.runzero.com/blog/lights-out-exposed/

Source: 44488dab-36db-4358-99f9-bc116477f914

Timeline

No history available yet.