Cyber Posture

CVE-2024-39790

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 0.0004 13.5th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Description

Multiple external config control vulnerabilities exist in the nas.cgi set_ftp_cfg() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to permission bypass. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.A configuration injection vulnerability exists within the `ftp_max_sessions` POST parameter.

Security Summary

CVE-2024-39790 involves multiple external configuration control vulnerabilities in the nas.cgi set_ftp_cfg() functionality of the Wavlink AC3000 router running firmware version M33A8.V5030.210505. A specially crafted HTTP request can lead to permission bypass, while a configuration injection vulnerability exists within the ftp_max_sessions POST parameter. The issue, published on 2025-01-14, carries a CVSS v3.1 base score of 9.1 (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H) and maps to CWE-15.

These vulnerabilities can be exploited by an authenticated attacker with high privileges (PR:H) who sends a specially crafted HTTP request to the affected component. Successful exploitation enables permission bypass and configuration injection, granting high impacts on confidentiality, integrity, and availability, with a changed scope (S:C).

Mitigation details are available in the Talos Intelligence advisory TALOS-2024-2056 at https://talosintelligence.com/vulnerability_reports/TALOS-2024-2056.

Details

CWE(s)
CWE-15

Affected Products

wavlink
wl-wn533a8 firmware
m33a8.v5030.210505

References