OS Command Injection in SmarterMail - CVE-2026-24423

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Main Vulnerability Database Vulnerabilities #VU122426

OS Command Injection in SmarterMail - CVE-2026-24423

Published: February 6, 2026


Vulnerability identifier: #VU122426
CSH Severity: Critical
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2026-24423
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild
Vendor: SmarterTools Inc.
Affected software:
SmarterMail

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to missing authentication in the ConnectToHub API method. A remote non-authenticated attacker can send a specially crafted HTTP request and execute arbitrary OS commands on the system.


How to mitigate CVE-2026-24423

Install updates from vendor's website.

Sources