CVE-2026-11523

HIGH 8.8

Tenda W20E Web Management PortalAuth formPortalAuth stack-based overflow

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-121 CWE-119
Vendor	tenda
Product	w20e
Published	Jun 8, 2026
Last Updated	Jun 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Tenda / W20E

15.11.0.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/369143 vuldb.com: https://vuldb.com/vuln/369143/cti vuldb.com: https://vuldb.com/cve/CVE-2026-11523 vuldb.com: https://vuldb.com/submit/836471 github.com: https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/formPortalAuth/formPortalAuth.md tenda.com.cn: https://www.tenda.com.cn/

Credits

🔍 hacker128 (VulDB User)