CVEvulnerability

CVE-2026-16141

8.1 HIGH Published 2026-09-15 Modified 2026-09-18 Official page ↗
Status
Awaiting Analysis
Published
2026-09-15
Last modified
2026-09-18
Assigner
44488dab-36db-4358-99f9-bc116477f914
CVSS 3.1 (44488dab-36db-4358-99f9-bc116477f914)
8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-457, CWE-798

Description

OpenBMC's IPMI implementation, phosphor-net-ipmid, contains a logic flaw in which an unauthenticated client can force the RAKP Message 1 handler to return before it overwrites the authentication object's constructor defaults. The IPMI service then accepts a RAKP Message 3 whose HMAC is computed with the constant 20-byte 'userKey' initialized from the string '0penBmc' and an often-predictable 'bmcRandomNum'. Several downstream vendors implement phosphor-net-ipmid as their IPMI stack, such as NVIDIA and H3C.

Related

Weakness · CWE (2)

  • CWE-457 Use of Uninitialized Variable weakness
  • CWE-798 Use of Hard-coded Credentials weakness

References