CVE-2023-41347
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 · uneditedASUS RT-AX55’s authentication-related function has a vulnerability of insufficient filtering of special characters within its check token module. An authenticated remote attacker can exploit this vulnerability to perform a Command Injection attack to execute arbitrary commands, disrupt the system or terminate services.
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 ASUS RT-AX55 router contains a command injection vulnerability in its check token authentication module. The vulnerability stems from insufficient filtering of special characters within the token validation function, allowing authenticated remote attackers to inject and execute arbitrary operating system commands.
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= 3.0.0.4.386.51598CVSS 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 the router modelLog into the router admin interface or check the device label to confirm the model is ASUS RT-AX55Affected if The device is not an ASUS RT-AX55 model, then it is not affected by this specific CVE
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Check the installed firmware versionIn the router web interface, navigate to Administration > Firmware Upgrade or check the system status page to view the current firmware versionAffected if The firmware version is exactly 3.0.0.4.386.51598, then the environment is running the vulnerable version
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Determine if remote management is enabledIn the router web interface, go to Administration > System > Remote Management (or WAN Access) and check if remote access via WAN is enabledAffected if Remote management is enabled and accessible from WAN, then the attack surface for authenticated remote attackers is present
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Verify the administrative interface accessibilityCheck if the router web interface (typically ports 80/443) is accessible from untrusted networks or the internetAffected if The admin interface is exposed to untrusted networks, then attackers could potentially reach the token authentication module
The environment is affected if it is an ASUS RT-AX55 router running firmware version 3.0.0.4.386.51598 with remote management or administrative access enabled 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 dataApply the vendor-provided firmware patch when available. Until then, disable remote management access, restrict administrative interfaces to trusted networks, and monitor for indicators of compromise.
- Consultation3.0 h
- Implementation4.0 h
- Testing4.0 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 $3,648.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-41347 — 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-2023-41347 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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