CVE-2026-8480

Connection possible to the Administration portal with a revoked certificate

State: Published
Severity: 4.3 Medium
Published: Jul 1, 2026
Updated: Jul 1, 2026
Reserved: May 13, 2026

Description

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 portal, allowing an attacker who possesses the revoked certificate to gain administrative access.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	airbus

Weaknesses

CWE-295 Improper certificate validation

Affected Products

Product	Versions
Stormshield Network SecurityStormshield	4.3.0 through 4.3.41Affected 4.4.0 through 4.8.15Affected 5.0.2 EA through 5.0.5Affected

References

https://advisories.stormshield.eu/2026-002/

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