What’s Vulnerable › Vulnerabilities
CVE-2022-23989
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2022-03-15 · updated 2026-06-17
Description
In Stormshield Network Security (SNS) before 3.7.25, 3.8.x through 3.11.x before 3.11.13, 4.x before 4.2.10, and 4.3.x before 4.3.5, a flood of connections to the SSLVPN service might lead to saturation of the loopback interface. This could result in the blocking of almost all network traffic, making the firewall unreachable. An attacker could exploit this via forged and properly timed traffic to cause a denial of service.
Affected products
- Stormshield Network Security: from 3.0.0 before 3.7.25; from 3.8.0 before 3.11.13; from 4.0.0 before 4.2.10; from 4.3.0 before 4.3.5 — fixed in 3.11.13, 3.7.25, 4.2.10, 4.3.5
How to fix
Upgrade to a fixed version: Stormshield Network Security 3.11.13, 3.7.25, 4.2.10, 4.3.5. Check the vendor advisory for mitigations.
References
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