Vulnerability · Published Apr 23, 2024 · Assigned by VulDB

CVE-2024-4066Tenda AC8 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in AC8 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 78% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.8%top 21.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Tenda	AC8	16.03.34.09

Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

VDB-261792 | Tenda AC8 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflow vdb-entry, technical-description
VDB-261792 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #316495 | Tenda AC8v4 V16.03.34.09 buffer overflow third-party-advisory
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AC8/fromAdvSetMacMtuWan.md exploit