CVE-2021-31399

MEDIUM

2n Access Unit 2.0 Firmware 2.31.0.40.5 - Improper Certificate Validation

Title source: llm

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.

Core 3

Core References

Third Party Advisory

Vendor Advisory

Various Sources

CVSS v3 4.6

EPSS 0.0085

EPSS Percentile 53.4%

Attack Vector ADJACENT_NETWORK

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

CWE

CWE-295

Status published

Products (1)

2n/access_unit_2.0_firmware 2.31.0.40.5

Published Aug 13, 2021

Tracked Since Feb 18, 2026