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  4. CVE 2026 90689 tenda w20e formdelwebauthwhiteuser stack based
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Back to active CVEs
High · CVSS 8.7CVE-2026-90689

Tenda W20E formDelWebAuthWhiteUser stack-based overflowCVE-2026-90689

Answer in brief

CVE-2026-90689 records a High severity (CVSS 8.7) 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 Oct 29, 2026First seen by HOL Sep 14, 2026Material review Sep 14, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.7
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 8.7. 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
PackageAffected rangeFixed version
Tenda/W20Egeneric15.11.0.61068_1546_841_CN_TDCNot reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Tenda/W20E.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 14, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencetenda.com.cn
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.

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-121, CWE-119
Source
CVE List V5
Source checked
Oct 29, 2026
References
6 linked sources
Open source record