CVE-2021-31399: 2n Access Unit 2.0 Firmware

Medium severity, CVSS 5.9. EPSS: 0.8% chance of exploitation in the next 30 days.

On 2N Access Unit 2.0 2.31.0.40.5 devices, an attacker can pose as the web relay for a man-in-the-middle attack.

Affected products

• 2n Access Unit 2.0 Firmware: version 2.31.0.40.5 only

Published 2021-08-13. Last modified 2026-06-17.