CVE-2026-8480

Connection possible to the Administration portal with a revoked certificate

MEDIUM
4.3
CVSS Score
Published: July 1, 2026 at 02:52 PM UTC
Updated: October 25, 2026 at 05:10 PM UTC
1 product affected across 1 vendorNetwork Security

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.3.0 ≤ v ≤ 4.3.414.4.0 ≤ v ≤ 4.8.155.0.2 EA ≤ v ≤ 5.0.54.3.04.4.05.0.2 EA

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMairbus
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-295

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