How to fix CVE-2024-39273?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Audit authentication configurations and rotate any potentially compromised credentials.

Is Wl Wn533A8 Firmware affected by CVE-2024-39273?

CVE-2024-39273 presents critical security risk, a missing authentication vulnerability rated CVSS 9.0. Attackers could bypass security controls to gain unauthorized access to protected resources and sensitive data. Proof-of-concept code is publicly available, increasing the risk of exploitation.

CVE-2024-39273

CRITICAL

2025-01-14 [email protected]

9.0

CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:03 vuln.today

PoC Detected

Aug 21, 2025 - 18:43 vuln.today

Public exploit code

CVE Published

Jan 14, 2025 - 15:15 nvd

CRITICAL 9.0

Description

A firmware update vulnerability exists in the fw_check.sh functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary firmware update. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.

Analysis

A firmware update vulnerability exists in the fw_check.sh functionality of Wavlink AC3000 M33A8.V5030.210505. Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. A firmware update vulnerability exists in the fw_check.sh functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary firmware update. An attacker can perform a man-in-the-middle attack to trigger this vulnerability. Affected products include: Wavlink Wl-Wn533A8 Firmware.

Affected Products

Wavlink Wl-Wn533A8 Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.3

CVSS: +45

POC: +20

CVE-2024-39273 vulnerability details – vuln.today

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CVE-2024-39273

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CVE-2024-39273

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