Vendor / Project: SmarterTools Product: SmarterMail Description: SmarterTools SmarterMail contains a missing authentication for critical function vulnerability in the ConnectToHub API method. This could allow the attacker to point the SmarterMail instance to a malicious HTTP server which serves the malicious OS command and could lead to command execution. Required Action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Due Date: 2026-02-26 Ransomware Campaign Use: Known CWEs: CWE-306 Notes: https://www.smartertools.com/smartermail/release-notes/current ; https://www.cve.org/CVERecord?id=CVE-2026-24423 ; https://nvd.nist.gov/vuln/detail/CVE-2026-24423