CERT-FR: Multiple vulnerabilities in Stormshield Network Security allow XSS, security policy bypass and data integrity compromise
CERT-FR advisory CERTFR-2026-AVI-1339 reports multiple vulnerabilities in Stormshield Network Security (SNS). Depending on the flaw, an attacker could compromise data integrity, bypass the security policy or inject indirect remote code through cross-site scripting (XSS). The advisory refers to four Stormshield security bulletins dated 16 …