CVE-2026-8480
Connection possible to the Administration portal with a revoked certificate
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-295 |
| Vendor | stormshield |
| Product | stormshield network security |
| Published | Jul 1, 2026 |
| Last Updated | Jul 1, 2026 |
Stay Ahead of the Next One
Get instant alerts for stormshield stormshield network security
Be the first to know when new medium vulnerabilities affecting stormshield stormshield network security are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
Stormshield / Stormshield Network Security
4.3.0 ≤ 4.3.41 4.4.0 ≤ 4.8.15 5.0.2 EA ≤ 5.0.5