CVE-2024-53944
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 · uneditedAn issue was discovered on Tuoshi/Dionlink LT15D 4G Wi-Fi devices through M7628NNxlSPv2xUI_v1.0.1802.10.08_P4 and LT21B devices through M7628xUSAxUIv2_v1.0.1481.15.02_P0. A unauthenticated remote attacker with network access can exploit a command injection vulnerability. The /goform/formJsonAjaxReq endpoint fails to sanitize shell metacharacters sent via JSON parameters, thus allowing attackers to execute arbitrary OS commands with root privileges.
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 confidenceA command injection vulnerability exists in the web interface of Tuoshi/Dionlink LT15D and LT21B 4G Wi-Fi devices. The /goform/formJsonAjaxReq endpoint accepts JSON parameters containing shell metacharacters without sanitization, allowing unauthenticated remote attackers to inject and execute arbitrary OS commands with root privileges.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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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Identify device modelAccess the device's web interface or check the device label/management console to confirm the exact model number is LT15D or LT21BAffected if Device model is Tuoshi LT15D or Dionlink LT21B 4G Wi-Fi device
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Check firmware versionLog into the device administration interface and navigate to System Settings or Status page to view the installed firmware version; compare against any vendor release notesAffected if Firmware version predates any vendor security patches or is unknown/unpatched
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Verify web management interface is network-accessibleDetermine if the device's HTTP/HTTPS management port (typically 80/443) is exposed to untrusted networks by reviewing firewall rules, router port forwarding settings, or performing an external port scanAffected if The /goform/formJsonAjaxReq endpoint is reachable from untrusted networks without authentication
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Test vulnerable endpoint accessibilitySend a crafted HTTP POST request to /goform/formJsonAjaxReq with JSON containing shell metacharacters (e.g., {"cmd":"test`id`"}) using curl or similar tool; observe if command output is returned or if the request succeedsAffected if The endpoint accepts and processes unsanitized input containing shell metacharacters
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Check for signs of compromiseReview device logs (if accessible) for suspicious commands, unexpected processes, or unauthorized access attempts; look for unknown external connections or cron jobsAffected if Logs show execution of unfamiliar commands, unauthorized IP addresses accessing the interface, or unexpected system changes
A user is affected if they own a Tuoshi LT15D or Dionlink LT21B device with an unpatched firmware version and the web management interface is network-accessible to untrusted parties.
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 vendor firmware updates when available; if no update exists, restrict network access to the device's management interface using firewall rules or network segmentation to prevent unauthorized external access.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-53944 — 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-2024-53944 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
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