What is the CVSS score of CVE-2024-39273?

CVE-2024-39273 has a CVSS 3.1 base score of 9.0 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Which versions of Wl Wn533A8 Firmware are affected by CVE-2024-39273?

CVE-2024-39273 presents critical security risk, a missing authentication vulnerability rated CVSS 9.0.

Is there a public PoC exploit available for CVE-2024-39273?

Yes, a public proof-of-concept exploit is available for CVE-2024-39273. Prioritise patching immediately. EPSS: 0.3%.

How to fix or mitigate CVE-2024-39273?

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

Wl Wn533A8 Firmware CVE-2024-39273

CRITICAL

Missing Authentication for Critical Function (CWE-306)

2025-01-14 talos-cna@cisco.com

Authentication Bypass Wl Wn533A8 Firmware

9.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.0 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

DescriptionCVE.org

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.

AnalysisAI

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 ContextAI

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.

RemediationAI

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