CVE-2026-111090
Improper Signature Verification of Firmware Update Files
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-287 |
| Vendor | stormshield |
| Product | stormshield network security |
| Published | Oct 20, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Stormshield / Stormshield Network Security
4.3.0 ≤ 4.3.44 4.8.0 ≤ 4.8.19 5.0.0 ≤ 5.0.9 5.1.0 ≤ 5.1.3