CVE-2026-113469: CWE-287: Improper Authentication in Stormshield Stormshield Network Security

This vulnerability arises from a logic error in the signature verification routine of Stormshield Network Security's dynamic data files during the Autoupdate process. The flaw causes the system to improperly authenticate dynamic data updates, permitting unauthenticated updates to be accepted. This improper authentication (CWE-287) can lead to unauthorized code or data being introduced into the system.

Successful exploitation could allow an attacker to inject unauthenticated dynamic data updates, potentially leading to full compromise of confidentiality, integrity, and availability of the affected system, as indicated by the CVSS vector (Confidentiality: High, Integrity: High, Availability: High). The attack vector is adjacent network with high attack complexity and no privileges or user interaction required.

No explicit patch or remediation details are provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the update mechanism and monitor for suspicious update activity.