CVE-2026-8480

Connection possible to the Administration portal with a revoked certificate

Published Jul 1, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

The following updates fix this vulnerability: * SNS 5.0.6 * SNS 4.8.16 * SNS 4.3.42

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Stormshield
Stormshield stormshield Network Security
Vendors & Products Stormshield
Stormshield stormshield Network Security
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Connection possible to the Administration portal with a revoked certificate
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
airbus
Published
Updated
Jul 1, 2026, 3:45 PM
Reserved
May 13, 2026, 1:48 PM
Status
Awaiting Analysis
Published
Jul 1, 2026, 4:16 PM
Modified
Oct 25, 2026, 5:10 PM