CVE-2026-5685 HIGH

CVE-2026-5685: Tenda CX12L addressNat fromAddressNat stack-based overflow

Vendor Tenda
Product CX12L
Weakness CWE-121
Published April 6, 2026
Last update April 7, 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 was identified in Tenda CX12L 16.03.53.12. This affects the function fromAddressNat of the file /goform/addressNat. The manipulation of the argument page leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit is publicly available and might be used.

Key dates

02Disclosure timeline

April 6, 2026 CVE published
April 7, 2026 Record updated