Skip to main content

W20e Firmware CVE-2026-24111

CRITICAL
Classic Buffer Overflow (CWE-120)
2026-03-02 cve@mitre.org
Buffer Overflow W20e Firmware
9.8
CVSS 3.1
Share

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Mar 05, 2026 - 16:16 vuln.today
Public exploit code
CVE Published
Mar 02, 2026 - 15:16 nvd
CRITICAL 9.8

DescriptionNVD

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by specifying the value of userInfo. When userInfo is passed into the addAuthUser function and processed by sscanf without size validation, it could lead to buffer overflow.

AnalysisAI

Tenda W20E has a fourth buffer overflow vulnerability.

Sign in for full analysis, threat intelligence, and remediation guidance.

RemediationAI

Within 24 hours: Identify all Tenda W20E V4.0br devices in your network inventory and isolate affected units from production traffic if business-critical. Within 7 days: Contact Tenda for patch status and timelines; implement network segmentation to restrict router management access to trusted administrative networks only. …

Sign in for detailed remediation steps.

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Sign in - Free

Share

CVE-2026-24111 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy