CVE-2026-24423
KEV · RansomwareSmarterTools SmarterMail Missing Authentication for Critical Function Vulnerability
View CVE record →- Vendor / Project
- SmarterTools
- Product
- SmarterMail
- Date added
- Feb 5, 2026
- Due date
- Feb 26, 2026
- Known ransomware use
- Known
- CWEs
- CWE-306
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.