CVE-2022-40623

Name: CVE-2022-40623
Creator: NVD / NIST
Published: 2022-09-13T21:15:10.253+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.55%

Last modified Jun 17, 2026

CVE-2022-40623 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The WAVLINK Quantum D4G (WN531G3) running firmware version M31G3.V5030.200325 does not utilize anti-CSRF tokens, which, when combined with other issues (such as CVE-2022-35518), can lead to remote, unauthenticated command execution.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.

Description

The WAVLINK Quantum D4G (WN531G3) running firmware version M31G3.V5030.200325 does not utilize anti-CSRF tokens, which, when combined with other issues (such as CVE-2022-35518), can lead to remote, unauthenticated command execution.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.55%

41.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Wavlink	Wn531g3 Firmware	<= m31g3.v5030.200325

References

https://youtu.be/cSileV8YbsQ?t=1028Exploit, Third Party Advisory
https://youtu.be/cSileV8YbsQ?t=1028Exploit, Third Party Advisory

Timeline

Published: Sep 13, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-40623?

How severe is CVE-2022-40623?

CVE-2022-40623 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.

How do I fix CVE-2022-40623?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-40623?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST