CVE-2026-16141

8.1 Élevée

Publiée le 15/09/2026 à 16:16 · Modifiée le 18/09/2026 à 21:30 · En attente d'analyse NVD · Source : 44488dab-36db-4358-99f9-bc116477f914

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.

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Produits concernés

OpenBMC phosphor-net-ipmid

Scores CVSS

Version	Score	Source	Vecteur
3.1	8.1 Élevée	44488dab-36db-4358-99f9-bc116477f914	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`

Faiblesses (CWE)

CWE-457
CWE-798

Références

https://www.runzero.com/advisories/openbmc-ipmi-auth-bypass-rakp-cve-2026-16141/
https://www.runzero.com/blog/lights-out-exposed/

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories