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U BootApplication · Denx

CVE-2022-30552

MEDIUM · 5.5 CVSS v3.1 Developing Published 2022-06-08
No fix yet
No fix has been published. The vendor has not shipped a fixed release or patch. You remain exposed.
See remediation →
57/100
Remediation priority · Elevated
Zero-click

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 · unedited
Das U-Boot 2022.01 has a Buffer Overflow.

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 confidence
Developing — this CVE was published recently and its authoritative NVD entry is still being established, so we're holding a technical summary until the source data settles rather than publish something unreliable. Re-checking after 2026-08-02.

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 data
U BootApplication
Affected:= 2022.01

CVSS 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
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 · scoped
Recommended fix Moderate confidence

U-Boot 2022.04 or later (check official release notes for CVE-2022-30552 fix)

  1. 1. Check the current U-Boot version in use by running 'git log' or checking the version string during boot
  2. 2. Obtain the fixed U-Boot release from the official U-Boot repository at https://source.denx.de/u-boot/u-boot/-/releases
  3. 3. Review the commit log and security advisories for CVE-2022-30552 to identify the specific vulnerability and affected code paths
  4. 4. Apply the security fix by either upgrading to a patched version or backporting the specific commit that addresses the buffer overflow
  5. 5. Rebuild the U-Boot binary with the fix applied
  6. 6. Verify the fix resolves the vulnerability by reviewing the patch and confirming the buffer bounds checking is properly implemented
  7. 7. Test the updated U-Boot in a staging environment before production deployment
Caveat Newer U-Boot versions may introduce configuration changes or remove deprecated features; review the release notes for any breaking changes between 2022.01 and the target version

Generated from the published advisory — verify against the referenced sources before acting.

No vendor fix exists U Boot has not published a patch for this.

There is no version to upgrade to and no patch to apply. Every affected install stays exposed until the vendor ships a fix — or somebody else builds one.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-30552 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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