CVE-2026-111090
High
Description
A logic error exists in the signature verification routine resulting in acceptance of unauthenticated update and license files.It is necessary to use only the MyStormshield servers to retrieve update files or licenses, or to use automatic verification via SNS.
SeverityHigh
CVSS7.8
Exploit probability—
ProductStormshield Network Security
PublishedOct 20, 2026
First seenOct 20, 2026
Weakness typeCWE-287Improper authentication
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Stormshield Stormshield Network Security | 4.3.0 ≤ v ≤ 4.3.44, 4.8.0 ≤ v ≤ 4.8.19, 5.0.0 ≤ v ≤ 5.0.9, 5.1.0 ≤ v ≤ 5.1.3 | — |
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