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.

Score

CVSS 3.1 8.8 High

Status

Deferred - cna@vuldb.com

Published

2026-09-14

Last modified

2026-09-14

Weaknesses

CWE-119, CWE-121

Affected products

• W20e Firmware (Tenda)

References

• https://github.com/Amalll-Sec/router-vulnerability-research/blob/main/advisories/Tenda/W20E/formDelWebAuthWhiteUser/REA…
• 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/