CVE-2022-21216
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedInsufficient granularity of access control in out-of-band management in some Intel(R) Atom and Intel Xeon Scalable Processors may allow a privileged user to potentially enable escalation of privilege via adjacent network access.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThis vulnerability exists in the out-of-band management (BMC/IPMI) subsystems of certain Intel Atom and Xeon Scalable processors. It allows a privileged user to escalate their privileges via adjacent network access due to insufficient granularity of access control in the management interface.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versionsall versionsall versionsall versionsall versionsall versionsall versionsall versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Adjacent
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify processor modelExecute 'dmidecode -t processor' or check system BIOS/motherboard specifications to confirm the exact Intel Xeon processor model numberAffected if The processor model matches any of: Xeon Gold 5315y, 5317, 5318n, 5318s, 5318y, 5320, 5320t, or 6312u
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Verify BMC/IPMI interface is activeCheck if the Baseboard Management Controller is reachable via IPMI commands (such as 'ipmitool mc info' or by attempting to access the BMC web interface on the dedicated management network port)Affected if The BMC is powered on and the IPMI management interface responds to network requests
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Confirm network accessibility of management interfaceVerify that the BMC IP address is reachable from adjacent network segments (check ping, IPMI over LAN, or web interface availability)Affected if The BMC management interface is accessible from network segments beyond the dedicated management network
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Review BMC user privilegesQuery BMC user accounts and their privilege levels using IPMI commands such as 'ipmitool user list' or via the BMC web interface user management sectionAffected if Multiple users exist with administrative or operator-level privileges without granular role-based access controls configured
A system is affected if it uses any of the listed Intel Xeon Gold processor models and has the BMC/IPMI management interface enabled and accessible on the network, particularly if adjacent network access to the BMC is possible without strict access controls.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply Intel-provided firmware updates for affected processors and review/adjust out-of-band management access controls to enforce least privilege.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,968.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-21216 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-21216 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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