What is the CVSS score of CVE-2026-24112?

CVE-2026-24112 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%.

Which versions of W20e Firmware are affected by CVE-2026-24112?

A critical vulnerability (CVE-2026-24112) affects Tenda W20E routers with a 9.8 CVSS score, allowing unauthenticated remote attackers to compromise affected devices through userInfo parameter…

Is there a public PoC exploit available for CVE-2026-24112?

Yes, a public proof-of-concept exploit is available for CVE-2026-24112. Prioritise patching immediately. EPSS: 0.1%.

W20e Firmware CVE-2026-24112

CRITICAL

Classic Buffer Overflow (CWE-120)

2026-03-02 cve@mitre.org

Buffer Overflow W20e Firmware

9.8

CVSS 3.1

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

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Mar 03, 2026 - 20:16 vuln.today

Public exploit code

CVE Published

Mar 02, 2026 - 16:16 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 addWewifiWhiteUser function and processed by sscanf without size validation, it could lead to a buffer overflow vulnerability.

AnalysisAI

Tenda W20E has a ninth buffer overflow in yet another CGI endpoint.

RemediationAI

Within 24 hours: Identify and inventory all Tenda W20E V4.0br_V15.11.0.6 devices in your network and isolate critical instances from sensitive systems. Within 7 days: Implement network segmentation to restrict router admin access, disable remote management features, and deploy network-based detection rules for exploit attempts. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-24112 vulnerability details – vuln.today

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W20e Firmware CVE-2026-24112

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

RemediationAI

Full analysis requires sign-in

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External POC / Exploit Code