CVE-2025-9046

HIGH

Tenda Ac20 Firmware - Memory Corruption

Title source: rule

Description

A vulnerability was identified in Tenda AC20 16.03.08.12. This issue affects the function sub_46A2AC of the file /goform/setMacFilterCfg. The manipulation of the argument deviceList leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

References (6)

[Third Party Advisory, VDB Entry] https://vuldb.com/?id.320267

[Permissions Required] https://vuldb.com/?ctiid.320267

[Third Party Advisory, VDB Entry] https://vuldb.com/?submit.631932

[Exploit, Third Party Advisory] https://github.com/ZZ2266/.github.io/blob/main/AC20/formSetMacFilterCfg/readme.md

[Exploit, Third Party Advisory] https://github.com/ZZ2266/.github.io/blob/main/AC20/formSetMacFilterCfg/readme.md#poc-python-exploit-script

View Exploit ZIP pw:eip

[Product] https://www.tenda.com.cn/

Scores

CVSS v3 8.8

EPSS 0.0035

EPSS Percentile 57.7%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-119 CWE-121

Status published

Products (1)

tenda/ac20_firmware 16.03.08.12

Published Aug 15, 2025

Tracked Since Feb 18, 2026