CVE-2026-11523CWE-119CWE-121

Tenda W20E Web Management PortalAuth formPortalAuth stack-based overflow

High · published June 8, 2026

CVSS v4.0
8.7
EPSS
0%
Percentile
39.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
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
EPSS
0.00466 · 39.4th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2026-06-08T14:45Z
EPSS history
Timeline
  • 08 JUN 14:45Z
    Tenda W20E Web Management PortalAuth formPortalAuth stack-based overflow
    cvelistv5