CVE-2023-1457
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 · uneditedA vulnerability, which was classified as critical, was found in Ubiquiti EdgeRouter X 2.0.9-hotfix.6. Affected is an unknown function of the component Static Routing Configuration Handler. The manipulation of the argument next-hop-interface leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. VDB-223302 is the identifier assigned to this vulnerability. NOTE: The vendor position is that post-authentication issues are not accepted as vulnerabilities.
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 confidenceCommand injection vulnerability in Ubiquiti EdgeRouter X static routing configuration handler allows remote attackers to execute arbitrary commands via the next-hop-interface argument without proper sanitization.
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= 2.0.9CVSS 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
- High
CVSS:3.1/AV:N/AC:L/PR:N/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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Confirm EdgeRouter X modelLog into the router CLI or web interface and identify the device model. In CLI, run 'show version' or check the web dashboard for model information.Affected if The device is not a Ubiquiti EdgeRouter X model - if a different model, this specific CVE may not apply.
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Check firmware versionIn CLI, run 'show version' to display the firmware version. In web UI, check System > Firmware or the dashboard for the current version.Affected if Firmware version is exactly 2.0.9 - this is the only version listed as affected by this CVE.
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Verify static routing configurationIn CLI, run 'show routing static' to list any configured static routes. In web UI, check Routing > Static Routes.Affected if Static routes with next-hop-interface parameters are configured - this is the feature where the vulnerable code path is triggered.
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Check management interface exposureReview firewall rules and interface bindings. In CLI, run 'show firewall' and check which interfaces the administrative services (HTTPS/SSH) are bound to.Affected if The management interface (HTTPS/SSH) is accessible from untrusted networks (WAN interface or non-local subnets) - this determines remote exploitability.
You are affected if you have an EdgeRouter X running firmware 2.0.9 with static routing configured and management interfaces exposed to untrusted networks.
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 dataUpgrade to a patched firmware version when available; restrict administrative interface access to trusted networks; implement network segmentation to limit exposure of management interfaces.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2023-1457 — 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-2023-1457 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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- Version or environment caveats, and links to real fixes
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