CVE-2020-15467
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 · uneditedThe administrative interface of Cohesive Networks vns3:vpn appliances before version 4.11.1 is vulnerable to authenticated remote code execution leading to server compromise.
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 confidenceThe administrative interface of Cohesive Networks vns3 VPN appliances before version 4.11.1 contains an authenticated remote code execution vulnerability. An attacker with valid admin credentials can execute arbitrary code on the server through the web-based management interface, leading to complete server compromise.
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< 4.11.1CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/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.
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Identify Vns3 versionAccess the web-based management interface and locate the version information typically displayed in the dashboard, about page, or system status section. Alternatively, check via CLI if you have shell access.Affected if The displayed version number is lower than 4.11.1 (e.g., 4.10.0, 4.9.x, etc.)
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Verify admin web interface accessibilityConfirm the Vns3 web management interface is reachable on its configured port (typically 443 or 8443) from your detection location. Attempt to reach the login page.Affected if The administrative web interface is accessible from a network where untrusted users could obtain valid admin credentials
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Check admin credential validityReview your current admin account list and last login timestamps in the Vns3 user management section. Verify which accounts have administrative privileges.Affected if Any valid admin-level credentials exist in the system (the vulnerability requires authenticated access)
You are affected if your Vns3 version is below 4.11.1 AND the web-based administrative interface is accessible to anyone who could obtain or already possesses admin credentials.
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 data4.11.1
Upgrade vns3 appliances to version 4.11.1 or later. Until patched, restrict administrative interface access to trusted IP addresses or VPN-connected management networks only.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2020-15467 — 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-2020-15467 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
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