Cyber Resilience

CVE-2024-36295

CriticalPublic PoC

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 0.0789 92.2th percentile
Risk Priority 23 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-36295 is a critical-severity Injection (CWE-74) 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 7.8% 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

A command execution vulnerability exists in the qos.cgi qos_sta() functionality of the Wavlink AC3000 router running firmware M33A8.V5030.210505. The issue, tracked as CWE-74, permits arbitrary command execution when an attacker supplies a specially crafted HTTP request to the affected component.

An authenticated attacker with high privileges can exploit the flaw over the network by sending a malicious request, resulting in full compromise of confidentiality, integrity, and availability on the device with changed scope.

The vulnerability is detailed in the Talos Intelligence advisory TALOS-2024-2047, available at the referenced URLs. The EPSS score has remained flat at 0.0789 with no material increase observed after disclosure.

EU & UK References

Vulnerability details

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

CWE(s)
CWE-74

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?

Direct arbitrary command execution via crafted HTTP request to public-facing CGI endpoint on network device enables T1190 (Exploit Public-Facing Application) and T1059.004 (Unix Shell) for command execution on Linux-based router firmware.

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

CVEs Like This One

CVE-2024-39784Same product: Wavlink Wl-Wn533A8
CVE-2024-39785Same product: Wavlink Wl-Wn533A8
CVE-2024-34544Same product: Wavlink Wl-Wn533A8
CVE-2024-39604Same product: Wavlink Wl-Wn533A8
CVE-2024-21797Same product: Wavlink Wl-Wn533A8
CVE-2024-39783Same product: Wavlink Wl-Wn533A8
CVE-2024-39781Same product: Wavlink Wl-Wn533A8
CVE-2024-39367Same product: Wavlink Wl-Wn533A8
CVE-2024-38666Same product: Wavlink Wl-Wn533A8
CVE-2024-39280Same 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

Validates and sanitizes HTTP request inputs to the qos.cgi qos_sta() function to directly prevent arbitrary command injection.

SI-2 Flaw Remediation good match
prevent

Remediates the command execution flaw in Wavlink AC3000 firmware M33A8.V5030.210505 by applying vendor patches or workarounds from TALOS-2024-2047.

AC-6 Least Privilege partial match
prevent

Enforces least privilege to limit high-privilege (PR:H) access to the vulnerable qos.cgi endpoint, reducing the attack surface for authenticated exploitation.

References