CVE-2026-90689

Tenda W20E formDelWebAuthWhiteUser stack-based overflow

HIGH
8.8
CVSS Score
Published: September 14, 2026 at 06:15 AM UTC
Updated: September 14, 2026 at 09:14 PM UTC
1 product affected across 1 vendorW20E Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/403222
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/403222/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-90689
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/914981
Product
Source: cverecord
https://www.tenda.com.cn/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-121CWE-119

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