CVE-2026-24423

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.

Affected products

Smartermail

Smartertools Smartermail

< 100.0.9511

CVSS 3.1

9.8 CRITICAL

EPSS

87.7% (100th percentile)

Weakness

CWE-306

NVD status

Analyzed

Published

2026-01-23