CVE-2024-4066

Name: CVE-2024-4066
Creator: NVD / NIST
Published: 2024-04-23T21:15:49.04+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.76%

Last modified Jun 17, 2026

CVE-2024-4066 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability classified as critical has been found in Tenda AC8 16.03.34.09. Affected is the function fromAdvSetMacMtuWan of the file /goform/AdvSetMacMtuWan. EPSS estimates a 1.76% chance of exploitation in the next 30 days.

Description

A vulnerability classified as critical has been found in Tenda AC8 16.03.34.09. Affected is the function fromAdvSetMacMtuWan of the file /goform/AdvSetMacMtuWan. The manipulation of the argument wanMTU/wanSpeed/cloneType/mac/serviceName/serverName leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-261792. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.76%

75.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tenda	Ac8 Firmware	16.03.34.09

References

https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AC8/fromAdvSetMacMtuWan.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.261792Permissions Required, VDB Entry
https://vuldb.com/?id.261792Third Party Advisory, VDB Entry
https://vuldb.com/?submit.316495Third Party Advisory, VDB Entry
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AC8/fromAdvSetMacMtuWan.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.261792Permissions Required, VDB Entry
https://vuldb.com/?id.261792Third Party Advisory, VDB Entry
https://vuldb.com/?submit.316495Third Party Advisory, VDB Entry

Timeline

Published: Apr 23, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-4066?

How severe is CVE-2024-4066?

CVE-2024-4066 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.76% probability of exploitation in the next 30 days.

How do I fix CVE-2024-4066?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-4066?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST