CVE-2020-5534
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 · uneditedAterm WG2600HS firmware Ver1.3.2 and earlier allows an authenticated attacker on the same network segment to execute arbitrary OS commands with root privileges via unspecified vectors.
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 confidenceAuthenticated command injection vulnerability in Aterm WG2600HS router firmware versions 1.3.2 and earlier. An attacker with network access and valid credentials can execute arbitrary OS commands with root privileges via unspecified vectors, likely through a command injection flaw in the web management interface or related service.
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<= 1.3.2CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/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 the router modelLog into the device web interface or check the physical device label to confirm the exact model is Aterm WG2600HS.Affected if The device is not a Nec Aterm WG2600HS model.
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Check the installed firmware versionAccess the router web management interface, typically at 192.168.0.1 or 192.168.1.1, and navigate to the firmware or status page to view the current firmware version. Alternatively, check the administrative console or device documentation for version information.Affected if The firmware version is 1.3.2 or earlier.
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Determine if remote management is enabledIn the router web interface, check the remote management or WAN access settings to see if the administrative interface is accessible from the WAN/Internet side.Affected if Remote management (WAN access) is enabled and the web interface is exposed to untrusted networks.
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Assess credential exposureReview who has administrative credentials for the device and check if default credentials are still in use. Verify that credentials are not shared or stored insecurely.Affected if Default credentials are unchanged or credentials have been compromised or shared with untrusted parties.
A user is affected if they own a Nec Aterm WG2600HS router running firmware version 1.3.2 or earlier with the web management interface accessible from a network where an attacker could obtain valid 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 dataUpdate router firmware to a version newer than 1.3.2 once available from NEC/Aterm. Restrict administrative access to the device management interface to trusted IP addresses or VPN-only access to reduce the attack surface.
- Consultation3.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,832.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-5534 — 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-2020-5534 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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