Vulnerability · Published Apr 17, 2024 · Assigned by VulDB

CVE-2024-3907Tenda AC500 setcfm formSetCfm stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in AC500 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.9%top 20.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in Tenda AC500 2.0.1.9(1307). It has been rated as critical. This issue affects the function formSetCfm of the file /goform/setcfm. The manipulation of the argument funcpara1 leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-261143. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
Tenda	AC500	2.0.1.9(1307)

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-261143 | Tenda AC500 setcfm formSetCfm stack-based overflow vdb-entry, technical-description
VDB-261143 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #313802 | Tenda AC500 V2.0.1.9(1307) buffer overflow third-party-advisory
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AC500/formSetCfm.md exploit