Cyber Posture

CVE-2024-39774

CriticalPublic PoC

Published: 14 January 2025

Published
14 January 2025
Modified
22 August 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 0.0083 74.6th percentile
Risk Priority 19 60% EPSS · 20% KEV · 20% CVSS

Description

A buffer overflow vulnerability exists in the adm.cgi set_sys_adm() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Security Summary

CVE-2024-39774 is a stack-based buffer overflow vulnerability in the set_sys_adm() functionality of adm.cgi within the Wavlink AC3000 firmware version M33A8.V5030.210505. The issue arises from a specially crafted HTTP request that overflows the buffer, potentially allowing arbitrary code execution.

An attacker with high privileges (PR:H) can exploit this vulnerability remotely over the network (AV:N) with low attack complexity (AC:L) and no user interaction required (UI:N). Exploitation changes scope (S:C) and results in high impacts to confidentiality, integrity, and availability (C:H/I:H/A:H), yielding a CVSS v3.1 base score of 9.1.

Mitigation details are available in the Talos Intelligence advisory at https://talosintelligence.com/vulnerability_reports/TALOS-2024-2030.

Details

CWE(s)
CWE-120

Affected Products

wavlink
wl-wn533a8 firmware
m33a8.v5030.210505

References