What is the CVSS score of CVE-2026-24429?

CVE-2026-24429 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2026-24429?

Within 24 hours: Inventory all Tenda W30E V2 devices in production and isolate affected units from critical networks; immediately change default credentials if manual modification is supported and document all changes. Within 7 days: Assess feasibility of device replacement with alternative vendors or conduct network segmentation to restrict device administrative access to isolated management networks only. Within 30 days: Complete replacement of all affected devices with patched firmware versions once available, or migrate to alternative wireless solutions if vendor patch timeline is unacceptable.

W30e Firmware CVE-2026-24429

CRITICAL

Use of Default Password (CWE-1393)

2026-01-26 disclosure@vulncheck.com

Information Disclosure Tenda W30e Firmware

9.8

CVSS 3.1 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Discover Tenda W30E V2 device on network
Delivery

Connect to management interface
Exploit

Authenticate with default credentials
Execution

Access administrative controls
Impact

Execute arbitrary commands

Vulnerability Assessment

Weakness	CWE CWE-1393 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Default password prevention
Exploitation Conditions	Tenda W30E V2 firmware version V16.01.0.19(5037) or earlier with management interface accessible over network; default authentication credentials not changed during device initialization; no authentication bypass required due to hardcoded default account.
Impact	CVSS 9.8. Consumer/SMB router with default credentials — trivially exploitable.
Exploit ScenarioDerived	Attacker logs in with default credentials, reconfigures DNS/routing for MITM attacks.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Default credentials in Tenda W30E V2 router firmware through V16.01.0.19. Known default password enables full administrative access.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 22:00 CVSS 9.8

Default credentials in Tenda W30E V2 router.

RemediationAI

Change default credentials. Update firmware.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-1393 use of default credentials. Built-in account with predefined password.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionCVE.org

Shenzhen Tenda W30E V2 firmware versions up to and including V16.01.0.19(5037) ship with a predefined default password for a built-in authentication account that is not required to be changed during initial configuration. An attacker can leverage these default credentials to gain authenticated access to the management interface.

Executive ViewAI

Why It Matters

Tenda W30E V2 wireless devices contain a critical hardcoded default credential vulnerability affecting all firmware versions through V16.01.0.19(5037), enabling unauthenticated attackers to gain administrative access without requiring password changes during setup. Organizations deploying these devices face immediate risk of complete network compromise, unauthorized access, and data exfiltration, with no vendor patch currently available.

Business Impact: Severe

Compensating Controls

Implement network segmentation isolating Tenda W30E V2 devices to restricted VLANs with no access to sensitive systems; deploy WAF/IDS rules to monitor and block unauthorized administrative access attempts to device management interfaces; enforce mandatory VPN access for any administrative functions; disable UPnP and remote management features if available; implement MAC filtering and strong wireless encryption (WPA3); monitor device logs for unauthorized access attempts; consider temporary decommissioning of devices until vendor patch is released.

Threat Intelligence Overview

EPSS Score

0.1%

Top 70% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC No

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

CRITICAL severity

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

Very High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +49

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.