CVE-2020-9209
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 SMC2.0 product. Some files in a directory of a module are located improperly. It does not apply the directory limitation. Attackers can exploit this vulnerability by crafting malicious file to launch privilege escalation. This can compromise normal service of affected products.
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 privilege escalation vulnerability exists in Huawei SMC2.0 where certain files in a module directory are improperly located and do not enforce directory limitations. Attackers can craft malicious files to bypass restrictions and escalate privileges, compromising the affected product's security.
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= v600r006c00spc700= v600r006c00spc800= v600r006c10spc500= v600r006c10spc600= v600r006c10spc601= v600r006c10spc602= v600r006c10spc700= v600r006c10spc800= v600r006c10spca00= v600r006c10spcb00= v600r006c10spcc00= v600r006c10spcd00CVSS 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.
-
Identify installed SMC2.0 firmware versionAccess the SMC2.0 management interface or check system information to determine the exact firmware version runningAffected if The installed version matches any of: v600r006c00spc700, v600r006c00spc800, v600r006c10spc500, v600r006c10spc600, v600r006c10spc601, v600r006c10spc602, v600r006c10spc700, v600r006c10spc800, v600r006c10spca00, v600r006c10spcb00, v600r006c10spcc00, v600r006c10spcd00
-
Locate SMC2.0 module directoriesIdentify the directories where SMC2.0 modules are installed on the systemAffected if Module directories exist and contain user-writable locations without proper isolation
-
Inspect module directory file placementEnumerate all files within SMC2.0 module directories and check for files that should not be present in those locations based on normal product operationAffected if Unexpected or unauthorized files are found residing in module directories that should be restricted
-
Check directory permission controlsReview file system permissions on module directories to determine if directory isolation and access controls are properly enforcedAffected if Permissions allow write access from unprivileged users to directories that should be restricted
-
Audit newly created or modified filesReview system logs and file system audit trails for any recent file creations or modifications within SMC2.0 module directories by non-administrative accountsAffected if Evidence exists of file creation or modification by unauthorized users in module directories
A user is affected if their SMC2.0 firmware version is among the listed vulnerable versions AND the system contains improperly placed files or weak directory permissions in module directories.
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 Huawei's security patch for SMC2.0 when available, or implement strict file permission controls and directory isolation to prevent unauthorized file placement in restricted directories.
- Consultation4.0 h
- Implementation8.0 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 $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-9209 — 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-2020-9209 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