Targets widely-deployed BMC stack (OpenBMC phosphor-net-ipmid) used by vendors like NVIDIA and H3C; unauthenticated BMC admin access can lead to full server compromise and lateral movement.
CVE-2026-16141
Unauthenticated IPMI auth bypass in OpenBMC BMCs
Is CVE-2026-16141 being exploited?
Not confirmed. CVE-2026-16141 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.
How severe is CVE-2026-16141?
CVE-2026-16141 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-16141?
Yes. A fix has been recorded for CVE-2026-16141. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-16141 affect?
CVE-2026-16141 affects OpenBMC (phosphor-net-ipmid), BMC firmware in NVIDIA servers, H3C devices, Other vendors using phosphor-net-ipmid. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-16141?
Isolate BMC network, block IPMI from untrusted networks, implement ACLs, apply vendor firmware updates when released
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated attacker can bypass RAKP auth using fixed key/predictable nonce to gain BMC/admin access, enabling remote control, firmware tampering, and lateral movement.
Immediate action required
- affected<= ba6efc502e6b1fabb8ed1ca677ae5eedd64b6361
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.