CVE-2021-3398

MEDIUM 5.8CVE-2021-3398 · Published 10/02/2022 · updated 17/06/2026

In short

CVE-2021-3398 is a MEDIUM (CVSS 5.8) vulnerability affecting stormshield network security (stormshield).
Chance of exploitation in the next 30 days (EPSS): 0.92%, higher than 60.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
stormshield network security stormshield	`≥ 3.0.0, ≤ 3.7.24≥ 3.8.0, ≤ 3.11.12`	No fix yet

Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Package

Affected versions

Patched versions

≥ 3.0.0, ≤ 3.7.24≥ 3.8.0, ≤ 3.11.12

No fix yet

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