CVE-2026-4904

HIGH

Tenda AC5 POST Request setcfm formSetCfm stack-based overflow

Title source: cna

Description

A vulnerability has been found in Tenda AC5 15.03.06.47. This issue affects the function formSetCfm of the file /goform/setcfm of the component POST Request Handler. Such manipulation of the argument funcpara1 leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

References (5)

[Vdb Entry, Technical Description] https://vuldb.com/?id.353655

[Signature, Permissions Required] https://vuldb.com/?ctiid.353655

[Third Party Advisory] https://vuldb.com/?submit.777381

[Exploit] https://lavender-bicycle-a5a.notion.site/Tenda_AC5_setcfm_funcpara1-32053a41781f8073a4d6ef8076abe644?source=copy_link

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

Scores

CVSS v3 8.8

EPSS 0.0009

EPSS Percentile 25.6%

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 CWE-787

Status published

Products (2)

Tenda/AC5 15.03.06.47

tenda/ac5_firmware 15.03.06.47

Published Mar 27, 2026

Tracked Since Mar 27, 2026