CVE-2026-18450 Supermicro BMC contains Unprotected IPMI Commands Accepted on Active RMCP+ Sessions vulnerability
Critical 9.8
Published
Updated
Check this codebase for CVE-2026-18450 and fix it if it is affected.
What it is: CVE-2026-18450 is a critical vulnerability in SMCI X12SPI, published on 27 Oct 2026.
Exploitation: There is no known exploitation of CVE-2026-18450 in the wild and no public exploit code.
Affected product: SMCI X12SPI. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-18450/ (Markdown: https://insights.sbomify.com/CVE-2026-18450/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-18450?
CVE-2026-18450 is a critical vulnerability in SMCI X12SPI, published on 27 Oct 2026.
Official description
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.
Weakness: CWE-306
Which versions are affected by CVE-2026-18450?
How do I fix CVE-2026-18450?
No fix has been published for CVE-2026-18450 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-18450 being exploited?
There is no known exploitation of CVE-2026-18450 in the wild and no public exploit code.
Sources
Also known as GHSA-4gmh-3v9m-9469.