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    CVE-2026-111090

    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.

    Published:Oct 20, 2026
    Last Modified:Oct 20, 2026
    EPS:Oct 20, 2026
    EPSS Score:0.00122
    CVSS Score:7.8

    Affected Products

    Vendor
    Stormshield
    Product
    Stormshield Network Security

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

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    CVE-2026-113808 (CVSS 7.1) — A Stored Cross-Site Scripting vulnerability exists in the SNS enrollment Portal. Through the captive portal…
    CVE-2026-113469 (CVSS 7.5) — A failure has been identified in the SNS during dynamic data files signature check. A logic error in the si…
    CVE-2026-113465 (CVSS 6.6) — It is possible to execute a DOM-based Cross-Site Scripting attack against Stormshield’s web administration pan…
    CVE-2026-14466 (CVSS 4.3) — It’s possible to run a stored XSS in Stormshield’s web administration panel. To exploit this vulnerability,…
    CVE-2026-8482 (CVSS 4.3) — A vulnerability was discovered on StormShield Network Security 4.3.0 to 4.3.41 (included), 4.8.0 to 4.8.15 (in…
    CVE-2026-8480 (CVSS 4.3) — A vulnerability was discovered on Stormshield Network Security 4.3.0  to 4.3.41 (included), 4.4.0 to 4.8.15 (i…
    CVE-2026-8474 (CVSS 5.3) — A vulnerability was discovered on Stormshield Network Security  * 4.3.0 to 4.3.41,  * 4.8.0 to 4.8.…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High