CVE-2021-31814: Stormshield Network Security

Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.

In Stormshield 1.1.0, and 2.1.0 through 2.9.0, an attacker can block a client from accessing the VPN and can obtain sensitive information through the SN VPN SSL Client.

Affected products

• Stormshield Stormshield Network Security: from 2.1.0, up to and including 2.9.0; version 1.1.0 only

Published 2022-02-10. Last modified 2026-06-17.