Vulnerability in Stormshield Network Security

CVE-2021-3384

A vulnerability in Stormshield Network Security could allow an attacker to trigger a protection related to ARP/NDP tables management, which would temporarily prevent the system to contact new hosts via IPv4 or IPv6. This affects versions 2.0.0 to 2.7.7, 2.8.0 to 2.16.0, 3.0.0 to 3.7.16, 3.8.0 to 3.11.4, and 4.0.0 to 4.1.5. Fixed in versions 2.7.8, 3.7.17, 3.11.5, and 4.2.0.

EPSS: 0.010 (59.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

References

Frequently asked questions

What is CVE-2021-3384?
CVE-2021-3384 is a medium-severity vulnerability in Stormshield Network Security. CVSS score: 5.3/10. Published 2021-03-02.
How severe is CVE-2021-3384?
Medium severity. CVSS v3 base score is 5.3 out of 10.