Cyber Resilience

CVE-2024-37186

CriticalPublic PoCRCE

Published: 14 January 2025

Published
14 January 2025
Modified
21 August 2025
KEV Added
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Patch
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CVSS Score v3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0510 90.0th percentile
Risk Priority 21 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-37186 is a critical-severity Command Injection (CWE-77) vulnerability in Wavlink Wl-Wn533A8 Firmware. Its CVSS base score is 9.1 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 10.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

An os command injection vulnerability exists in the adm.cgi set_ledonoff() functionality of the Wavlink AC3000 router running firmware M33A8.V5030.210505. The flaw, tracked as CWE-77, allows a specially crafted HTTP request to execute arbitrary operating system commands on the device.

An authenticated attacker with administrative credentials can send a malicious HTTP request to the affected endpoint and achieve arbitrary code execution with high impact across confidentiality, integrity, and availability. The vulnerability carries a CVSS 3.1 score of 9.1, reflecting network-accessible exploitation without user interaction once valid credentials are obtained.

Public references from Talos Intelligence detail the issue under TALOS-2024-2032. The associated EPSS score rose from a low baseline to a peak of 0.0701 before settling at 0.0510, indicating emerging exploitation interest after disclosure.

EU & UK References

Vulnerability details

An os command injection vulnerability exists in the adm.cgi set_ledonoff() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CWE(s)
CWE-77

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
Why these techniques?

OS command injection in public-facing router web CGI (adm.cgi) directly enables remote exploitation of the web app for Unix shell command execution and arbitrary code execution.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2024-39783Same product: Wavlink Wl-Wn533A8
CVE-2024-39781Same product: Wavlink Wl-Wn533A8
CVE-2024-39367Same product: Wavlink Wl-Wn533A8
CVE-2024-39763Same product: Wavlink Wl-Wn533A8
CVE-2024-39782Same product: Wavlink Wl-Wn533A8
CVE-2024-39765Same product: Wavlink Wl-Wn533A8
CVE-2024-39764Same product: Wavlink Wl-Wn533A8
CVE-2024-39760Same product: Wavlink Wl-Wn533A8
CVE-2024-39761Same product: Wavlink Wl-Wn533A8
CVE-2024-34166Same product: Wavlink Wl-Wn533A8

Affected Assets

wavlink
wl-wn533a8 firmware
m33a8.v5030.210505

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly prevents OS command injection by validating and sanitizing specially crafted HTTP request inputs to the set_ledonoff() function in adm.cgi.

SI-2 Flaw Remediation good match
prevent

Remediates the specific command injection flaw in firmware version M33A8.V5030.210505 through timely patching or updates as advised in the Talos report.

SI-7 Software, Firmware, and Information Integrity partial match
detect

Monitors software and firmware integrity to detect unauthorized modifications resulting from arbitrary code execution via the injected commands.

References