CVE-2022-30539
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 · uneditedUse after free in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local 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 confidenceA use-after-free vulnerability in the BIOS firmware of certain Intel processors allows a privileged local user to potentially escalate their privileges. The vulnerability stems from improper memory management in the firmware, where memory is accessed after being freed, leading to undefined behavior that can be exploited for privilege escalation.
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
- Local
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/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 modelRun 'dmidecode -s processor-family' or 'cat /proc/cpuinfo' to confirm the CPU is an Intel Xeon Gold 5315y, 5317, 5318n, 5318s, 5318y, 5320, 5320t, or 6312uAffected if The processor matches one of these specific Xeon Gold model numbers
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Check BIOS firmware versionRun 'dmidecode -s bios-version' on Linux or check via BIOS/UEFI setup utility under 'Main' or 'System Information'Affected if A BIOS/firmware version is returned, confirming the system has vulnerable firmware (all versions are affected)
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Verify firmware vendor and platformRun 'dmidecode -s system-manufacturer' and 'dmidecode -s baseboard-product-name' to confirm this is an Intel platformAffected if The system is manufactured by Intel and contains an affected Xeon Gold processor
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Confirm local privileged access contextReview system logs, user accounts, and administrative access to determine if a privileged local user could exist on this systemAffected if The system allows local user accounts with elevated privileges, which is required to exploit this vulnerability
The system is affected if it contains any of the listed Intel Xeon Gold processor models (5315y, 5317, 5318n, 5318s, 5318y, 5320, 5320t, 6312u) and runs BIOS firmware, regardless of version since all versions are vulnerable.
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 the Intel BIOS/firmware update provided for affected processors. Verify the update through the Intel advisory and test in a controlled environment before production deployment.
- Consultation4.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,304.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-30539 — 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-2022-30539 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data