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Critical SmarterMail Vulnerability Allows Unauthenticated Remote Code Execution

First seen 31 Dec 2025, 09:12 UTC • Csa.Sg

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The Cyber Security Agency of Singapore (CSA) has issued a high-priority alert regarding a critical vulnerability in SmarterMail, tracked as CVE-2025-52691. This flaw allows attackers to execute arbitrary code remotely without authentication, affecting organizations using the enterprise email platform. SmarterTools has released security updates to address this vulnerability, urging users to upgrade to SmarterMail version Build 9413 immediately.

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Iranian APT Groups Target Israeli Organizations with Modular C2 Frameworks Ransomware Exploits Critical SmarterMail Vulnerability CVE-2026-24423 Active Exploitation of SmarterMail Vulnerability WT-2026-0001 Post-Patch Ransomware Fuels Surge in Global Cyberattacks Critical Vulnerability in SmarterMail Allows Remote Code Execution Metasploit Updates Include Exploits for FreePBX, Cacti, and SmarterMail

Critical SmarterMail Vulnerability Allows Unauthenticated Remote Code Execution

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