What is CVE-2026-18450?

CVE-2026-18450 is a critical-severity vulnerability, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-10-27.

How severe is CVE-2026-18450?

Critical severity. CVSS v3 base score is 9.8 out of 10.

CVE-2026-18450

CVE-2026-18450

The BMC does not correctly enforce integrity and encryption requirements for IPMI commands. An attacker may be able to craft packets that execute arbitrary commands on an active session.

Vulnerability class: Broken Authentication

Published 2026-10-27 · last modified 2026-10-27.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (34.1th percentile), scored 2026-10-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

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Frequently asked questions

What is CVE-2026-18450?: CVE-2026-18450 is a critical-severity vulnerability, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-10-27.
How severe is CVE-2026-18450?: Critical severity. CVSS v3 base score is 9.8 out of 10.