Cyber Posture

CVE-2024-39781

CriticalPublic PoC

Published: 14 January 2025

Published
14 January 2025
Modified
03 November 2025
KEV Added
Patch
CVSS Score 9.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0044 63.3th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Description

Multiple OS command injection vulnerabilities exist in the adm.cgi sch_reboot() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to a arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.A command injection vulnerability exists in the `restart_hour` POST parameter.

Security Summary

CVE-2024-39781 is a set of multiple OS command injection vulnerabilities in the adm.cgi sch_reboot() functionality of the Wavlink AC3000 router running firmware version M33A8.V5030.210505. These flaws, classified under CWE-77, stem from inadequate sanitization in the `restart_hour` POST parameter, allowing a specially crafted HTTP request to inject and execute arbitrary operating system commands.

An authenticated attacker with high privileges can exploit these vulnerabilities over the network with low complexity and no user interaction required. Successful exploitation leads to arbitrary code execution with high confidentiality, integrity, and availability impacts, as reflected in the CVSS v3.1 base score of 9.1 (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H). The changed scope (S:C) indicates potential effects beyond the vulnerable component.

Mitigation details are available in the Talos Intelligence advisory TALOS-2024-2033, accessible at https://talosintelligence.com/vulnerability_reports/TALOS-2024-2033. The vulnerability was published on January 14, 2025.

Details

CWE(s)
CWE-77

Affected Products

wavlink
wl-wn533a8 firmware
m33a8.v5030.210505

References