What is CVE-2026-8480?

CVE-2026-8480 is a medium-severity vulnerability in Stormshield Network Security, classified under Improper Certificate Validation. CVSS score: 4.3/10. Published 2026-07-01.

How severe is CVE-2026-8480?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Stormshield Network Security

CVE-2026-8480

A vulnerability was discovered on Stormshield Network Security 4.3.0 to 4.3.41 (included), 4.4.0 to 4.8.15 (included) , 5.0.2 EA to 5.0.5 (included) A revoked client certificate can still be used to authenticate to the captive‑admin po…

Vulnerability class: Improper Certificate Validation

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Stormshield Network Security — versions 4.3.0, 4.4.0, 5.0.2 EA

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

cert@airbus.com

Frequently asked questions

What is CVE-2026-8480?: CVE-2026-8480 is a medium-severity vulnerability in Stormshield Network Security, classified under Improper Certificate Validation. CVSS score: 4.3/10. Published 2026-07-01.
How severe is CVE-2026-8480?: Medium severity. CVSS v3 base score is 4.3 out of 10.