CVE-2020-9222
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 · uneditedThere is a privilege escalation vulnerability in Huawei FusionCompute product. Due to insufficient verification on specific files that need to be deserialized, local attackers can exploit this vulnerability to elevate permissions. (Vulnerability ID: HWPSIRT-2020-05241) This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-9222.
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 is a local privilege escalation vulnerability in Huawei FusionCompute. The vulnerability exists due to insufficient verification on specific files that undergo deserialization, allowing local attackers to exploit the deserialization process to elevate their privileges to higher permission levels.
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 data= 6.3.0= 6.3.1= 6.5.0= 6.5.1= 8.0.0CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/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.
-
Identify FusionCompute installation and versionLocate the FusionCompute installation directory and determine the installed version number. On FusionCompute systems, this is typically found in the product's version information file or via the management interface.Affected if The installed version matches exactly 6.3.0, 6.3.1, 6.5.0, 6.5.1, or 8.0.0
-
Verify the deserialization component is presentInspect the FusionCompute system for the presence of the component that handles file deserialization. This is typically located in the application runtime directories where user-provided files are processed.Affected if The deserialization component exists and processes files from locations accessible to local users
-
Check for unauthorized deserialization configuration filesExamine the FusionCompute configuration directories for any deserialization-related configuration files or serialized object files that the vulnerable code processes.Affected if Deserialization configuration files exist and are writable by low-privilege local users or are processed without proper validation
-
Review local user privileges and access patternsAudit local user accounts and their permission levels within the FusionCompute system, focusing on users who have file system access to the deserialization processing directories.Affected if There are local users with limited privileges who have any file system access to the application's deserialization processing paths
You are affected if your FusionCompute version is exactly 6.3.0, 6.3.1, 6.5.0, 6.5.1, or 8.0.0 and the deserialization component that processes user-accessible files is present and enabled on your system.
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 vendor patch (HWPSIRT-2020-05241) when available. Until then, restrict local access to trusted personnel only and monitor for unauthorized access attempts to the FusionCompute system.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,888.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-9222 — 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-2020-9222 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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