CVE-2026-4904 HIGH

CVE-2026-4904: Tenda AC5 POST Request setcfm formSetCfm stack-based overflow

Vendor Tenda
Product AC5
Weakness CWE-121
Published March 26, 2026
Last update March 27, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 26, 2026 CVE published
March 27, 2026 Record updated