CVE-2026-90689

A security flaw has been discovered in Tenda W20E 15.11.0.61068_1546_841_CN_TDC. Impacted is the function formDelWebAuthWhiteUser. Performing a manipulation of the argument webAuthWhiteUserIndex results in stack-based buffer overflow. The attack can be initiated remotely.

CVSS v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/Amalll-Sec/router-vulnerability-research/blob/main/advisories/Tenda/W20E/formDelWebAuthWhiteUser/README.md
https://vuldb.com/cve/CVE-2026-90689
https://vuldb.com/submit/914981
https://vuldb.com/vuln/403222
https://vuldb.com/vuln/403222/cti
https://www.tenda.com.cn/

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-14 07:17

Updated : 2026-09-14 20:56

NVD link : CVE-2026-90689

Mitre link : CVE-2026-90689

CVE.ORG link : CVE-2026-90689

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow

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