CVE-2026-11523 HIGH

CVE-2026-11523: Tenda W20E Web Management PortalAuth formPortalAuth stack-based overflow

Vendor Tenda
Product W20E
Weakness CWE-121
Published June 8, 2026
Last update June 8, 2026
View on NVD All CVEs

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 flaw has been found in Tenda W20E 15.11.0.6. This issue affects the function formPortalAuth of the file /goform/PortalAuth of the component Web Management Interface. Executing a manipulation of the argument gotoUrl can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used.

Key dates

02Disclosure timeline

June 8, 2026 CVE published
June 8, 2026 Record updated