CVE-2022-31638
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 · uneditedPotential time-of-check to time-of-use (TOCTOU) vulnerabilities have been identified in the BIOS for certain HP PC products, which might allow arbitrary code execution, escalation of privilege, denial of service, and information disclosure.
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 · low confidenceAffected 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 data<= 1.24<= 1.33<= 1.42<= 1.42<= 1.42<= 1.42<= 1.42<= 1.42CVSS 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
- High
- Privileges
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
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.
dbcve · scopedBIOS firmware version higher than affected versions (e.g., >1.24 for Zcentral 4r, >1.33 for Z1 All In One G3, >1.42 for EliteBook/ProBook/MT43 models) - obtain the exact fixed version from HP support page for your specific product
- 1. Identify the exact product model and current BIOS firmware version by checking HP Support or using HP's BIOS diagnostic tools
- 2. Visit the official HP support website (support.hp.com) and navigate to the product's drivers and downloads page
- 3. Locate the BIOS update that addresses CVE-2022-31638 - this will be a version higher than the vulnerable versions listed (e.g., >1.24 for Zcentral 4r, >1.33 for Z1 All In One G3, >1.42 for other affected models)
- 4. Download the HP BIOS update utility from HP's official support page
- 5. Follow HP's recommended procedure: either run the update from Windows or create a USB-based BIOS recovery update following HP's specific instructions
- 6. Ensure the system is connected to AC power and do not interrupt the update process
- 7. After the update completes, verify the BIOS version has been successfully updated
Generated from the published advisory — verify against the referenced sources before acting.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-31638 — 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-2022-31638 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
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data