CVE-2026-94389: Acymailing Newsletter Team Acymailing Smtp Newsletter

Critical severity, CVSS 9.0. EPSS: 0.5% chance of exploitation in the next 30 days.

Unauthenticated Remote Code Execution (RCE) in AcyMailing SMTP Newsletter <= 11.0.5 versions.

Affected products

• Acymailing Newsletter Team Acymailing Smtp Newsletter: up to and including 11.0.5

Published 2026-09-30. Last modified 2026-09-30.