Administrative portal access via revoked client certificate
Published Jul 1, 2026 · Updated Jul 1, 2026
Authentication bypass in Stormshield Network Security allows attackers with a revoked client certificate to access the admin portal. The captive-admin portal continues to accept a client certificate after revocation instead of rejecting it during authentication. Exploitation requires possession of the revoked certificate and adjacent-network reachability; the documented impact is access to administrative portal data without integrity or availability impact.
Summary
What happened
Authentication bypass in Stormshield Network Security allows attackers with a revoked client certificate to access the admin portal. The captive-admin portal continues to accept a client certificate after revocation instead of rejecting it during authentication. Exploitation requires possession of the revoked certificate and adjacent-network reachability; the documented impact is access to administrative portal data without integrity or availability impact.
The record
- CVE
- CVE-2026-8480
- Published
- Jul 1, 2026
- Updated
- Jul 1, 2026
- Vendor
- Stormshield
- Product
- Stormshield Network Security
- Classifications
- CWE-295, T1078
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 1, 2026CVE publishedPublication date reported by the CVE source.
- Jul 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=4.3.0 <=4.3.41
- Affected versionversion=4.4.0 <=4.8.15
- Affected versionversion=5.0.2 EA <=5.0.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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