What is the CVSS score of CVE-2024-42936?

CVE-2024-42936 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: 3.4%.

Which versions of Reyee Os are affected by CVE-2024-42936?

Organizations using mqlink.elf face critical risk from CVE-2024-42936, a code injection vulnerability rated CVSS 9.8.

Is there a public PoC exploit available for CVE-2024-42936?

Yes, a public proof-of-concept exploit is available for CVE-2024-42936. Prioritise patching immediately. EPSS: 3.4%.

How to fix or mitigate CVE-2024-42936?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Validate that input sanitization is in place for all user-controlled parameters.

Reyee Os CVE-2024-42936

CRITICAL

Code Injection (CWE-94)

2025-01-21 cve@mitre.org

RCE Code Injection Reyee Os Ruijie

9.8

CVSS 3.1 · NVD

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

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:04 vuln.today

PoC Detected

Dec 15, 2025 - 20:00 vuln.today

Public exploit code

CVE Published

Jan 21, 2025 - 20:15 nvd

CRITICAL 9.8

DescriptionCVE.org

The mqlink.elf is service component in Ruijie RG-EW300N with firmware ReyeeOS 1.300.1422 is vulnerable to Remote Code Execution via a modified MQTT broker message.

AnalysisAI

The mqlink.elf is service component in Ruijie RG-EW300N with firmware ReyeeOS 1.300.1422 is vulnerable to Remote Code Execution via a modified MQTT broker message. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Code Injection (CWE-94), which allows attackers to inject and execute arbitrary code within the application. The mqlink.elf is service component in Ruijie RG-EW300N with firmware ReyeeOS 1.300.1422 is vulnerable to Remote Code Execution via a modified MQTT broker message. Affected products include: Ruijie Reyee Os.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Never evaluate user-controlled input as code. Use sandboxing, disable dangerous functions, apply strict input validation.