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Critical SmarterMail Vulnerability Allows Remote Code Execution

Critical SmarterMail Vulnerability Allows Remote Code Execution

First seen 9 Jan 2026, 09:47 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

A critical remote code execution vulnerability, CVE-2025-52691, has been found in SmarterTools' SmarterMail solution. This flaw has a maximum CVSS score of 10.0, indicating its severe potential impact on systems using the software. SmarterMail is marketed as a secure business email and collaboration server for both Windows and Linux platforms.

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