CVE-2026-11523

HIGH

Tenda W20E Web Management PortalAuth formPortalAuth stack-based overflow

Title source: cna
STIX 2.1

Description

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.

References (6)

Core 6
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-369143 | Tenda W20E Web Management PortalAuth formPortalAuth stack-based overflow
https://vuldb.com/vuln/369143
Signature, Permissions Required signature permissions-required
VDB-369143 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/369143/cti
Third Party Advisory third-party-advisory
CVE-2026-11523 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-11523
Third Party Advisory third-party-advisory
Submit #836471 | Tenda W20E Enterprise Router V15.11.0.6 Stack-based Buffer Overflow
https://vuldb.com/submit/836471
Product product
https://www.tenda.com.cn/

Scores

CVSS v3 8.8
EPSS 0.0047
EPSS Percentile 36.6%
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
Status published
Products (1)
Tenda/W20E 15.11.0.6
Published Jun 08, 2026
Tracked Since Jun 08, 2026