Is CVE-2022-40622 actively exploited?

No active exploitation of CVE-2022-40622 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-40622 be exploited remotely?

Partially. CVE-2022-40622 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2022-40622?

CVE-2022-40622 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2022-40622

HIGH

CVE-2022-40622

CWE-304Published: September 13, 2022· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

The WAVLINK Quantum D4G (WN531G3) running firmware version M31G3.V5030.200325 uses IP addresses to hold sessions and does not not use session tokens. Therefore, if an attacker changes their IP address to match the logged-in administrator's, or is behind the same NAT as the logged in administrator, session takeover is possible.

NVD Source

Technical Analysis

CVE-2022-40622 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.