Tenda W20E formDelWebAuthWhiteUser stack-based overflow (CVE-2026-90689) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-90689

Tenda W20E formDelWebAuthWhiteUser stack-based overflow

Answer in brief

CVE-2026-90689 records a Unknown severity vulnerability in Tenda W20E formDelWebAuthWhiteUser stack-based overflow. The current sources do not mark it as known exploited. The current feed maps Tenda/W20E (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 14, 2026Updated Sep 14, 2026Source checked Sep 14, 2026First seen by HOL Sep 14, 2026Material review Sep 14, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Tenda/W20E (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Tenda/W20Egeneric	15.11.0.61068_1546_841_CN_TDC	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Tenda/W20E.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 14, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.