CVE-2026-24111

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by specifying the value of `userInfo`. When `userInfo` is passed into the `addAuthUser` function and processed by `sscanf` without size validation, it could lead to buffer overflow.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2026-24111	Exploit Third Party Advisory
https://www.tenda.com.cn/material/show/2707	Product
https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2026-24111	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:w20e_firmware:15.11.0.6:*:*:*:*:*:*:*

cpe:2.3:h:tenda:w20e:4.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-02 15:16

Updated : 2026-03-05 16:16

NVD link : CVE-2026-24111

Mitre link : CVE-2026-24111

CVE.ORG link : CVE-2026-24111

JSON object : View

Products Affected

tenda

w20e
w20e_firmware

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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