CVE-2024-2546
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 has been found in Tenda AC18 15.13.07.09 and classified as critical. Affected by this vulnerability is the function fromSetWirelessRepeat. The manipulation of the argument wpapsk_crypto5g leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-256999. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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 confidenceStack-based buffer overflow in Tenda AC18 router firmware 15.13.07.09 in the fromSetWirelessRepeat function. The wpapsk_crypto5g parameter is not properly bounds-checked before use in a stack buffer, allowing remote attackers to overflow the buffer and potentially execute arbitrary code. The exploit is publicly available and can be launched remotely.
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= 15.13.07.09CVSS 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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Confirm device model is Tenda AC18Identify the router model through the web interface (usually at 192.168.0.1), device label, or DHCP device naming. The vulnerability only affects the AC18 model.Affected if Device is not a Tenda AC18 router
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Check installed firmware versionAccess the router web interface and navigate to System Settings or Firmware Upgrade section to view the current firmware version. Compare against the affected version.Affected if Firmware version is exactly 15.13.07.09 (no other versions are listed as affected)
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Verify wireless repeating function statusIn the router web interface, go to Wireless Settings or Wireless Repeating section. Check if WDS, Repeater, or Wireless Repeat mode is configured or enabled.Affected if Wireless repeating/WDS/repeater mode is enabled (the vulnerability exists in the fromSetWirelessRepeat function)
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Assess management interface exposureCheck if the router HTTP/HTTPS management ports (80/443) are accessible from the internet or untrusted network segments. Review firewall rules or port forwarding configurations.Affected if Management interface is exposed to untrusted networks (the exploit can be launched remotely)
A user is affected only if they have a Tenda AC18 router with firmware version 15.13.07.09, wireless repeating is enabled, and the router management interface is accessible from an untrusted network.
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 dataSince the vendor has not responded to the disclosure, implement compensating controls: restrict network access to the router's management interface via firewall rules, disable wireless repeating functions if not needed, or consider replacing the device with a vendor-supported model. Monitor for indicators of compromise.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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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-2024-2546 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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