CVE-2026-8480
published 2026-07-01CVE-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…
PriorityP421medium4.3CVSS 3.1
AVAACLPRNUINSUCLINAN
EPSS
0.09%
0.4th percentile
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.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| stormshield | stormshield_network_security | 4.3.0 – 4.3.41 | — |
| stormshield | stormshield_network_security | 4.4.0 – 4.8.15 | — |
| stormshield | stormshield_network_security | 5.0.2 EA – 5.0.5 | — |
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VulDB
Stormshield Network Security up to 4.3.41/4.8.15/5.0.5 certificate validation
vuldb·2026-07-01·CVSS 4.3
CVE-2026-8480 [MEDIUM] Stormshield Network Security up to 4.3.41/4.8.15/5.0.5 certificate validation
A vulnerability labeled as problematic has been found in Stormshield Network Security up to 4.3.41/4.8.15/5.0.5. Affected is an unknown function. Executing a manipulation can lead to improper certificate validation.
This vulnerability is handled as CVE-2026-8480. The attack can be executed remotely. There is not any exploit available.
GHSA
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
ghsa_unreviewed·2026-07-01
CVE-2026-8480 [MEDIUM] CWE-295 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
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-07-01
Published