CVE-2020-9751
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 · uneditedNaver Cloud Explorer before 2.2.2.11 allows the system to download an arbitrary file from the attacker's server and execute it during the upgrade.
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 · high confidenceNaver Cloud Explorer versions prior to 2.2.2.11 contain a vulnerability in the upgrade mechanism that allows an attacker to supply an arbitrary malicious file from their controlled server, which gets downloaded and executed on the victim's system during the upgrade process. This is a critical remote code execution vulnerability with a CVSS score of 9.1.
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< 2.2.2.11CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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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Verify Naver Cloud Explorer is installedCheck for the presence of Naver Cloud Explorer application on the system - look for the application in installed programs, program files, or the application's executableAffected if The application is found installed on the system
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Determine installed versionLocate and read the version information for Naver Cloud Explorer - this is typically available in the application's properties, about dialog, or executable metadataAffected if The installed version cannot be determined or is below 2.2.2.11
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Compare version to affected rangeCompare your discovered version against the vulnerable range: any version prior to 2.2.2.11Affected if Installed version is less than 2.2.2.11
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Check if upgrade mechanism is accessibleDetermine whether the upgrade or update feature in Naver Cloud Explorer is available or enabled - this could be through the application's UI, configuration, or automatic update settingAffected if The upgrade mechanism is present and can be triggered, as the vulnerability exploits this feature specifically
A user is affected if Naver Cloud Explorer is installed with any version prior to 2.2.2.11 and the upgrade functionality is accessible on their 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.
dbcve · scoped2.2.2.11
Upgrade Naver Cloud Explorer to version 2.2.2.11 or later, which should include proper integrity verification and secure update mechanisms for the upgrade process.
2.2.2.11 or later
- Upgrade Naver Cloud Explorer to version 2.2.2.11 or later
- Verify the upgrade was successful by checking the application version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-9751 — 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-2020-9751 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