CVE-2026-24423
CRITICAL
CVSS: 9.8
EPSS: 88.0%
VulnCheck KEV
Weaponized
CWE-306
T1078
SmarterTools SmarterMail versions prior to build 9511 contain an unauthenticated remote code execution vulnerability in the ConnectToHub API method. The attacker could point the SmarterMail to the malicious HTTP server, which serves the malicious OS command. This command will be executed by the vulnerable application.
Published: 2026-01-23