Adobe has released security patches addressing eight critical vulnerabilities in Adobe Campaign Classic. The most severe flaw, CVE-2026-104351, carries a CVSS score of 9.9 and is a code injection vulnerability enabling arbitrary code execution. The vulnerabilities collectively allow for arbitrary code execution, security feature bypass, and privilege escalation. Adobe has classified all eight as critical severity issues. Users of Adobe Campaign Classic are urged to apply the patches immediately to mitigate potential exploitation risks.