Your webmail is a silent doorway for state-sponsored espionage. 📧
CVE-2025-49113 · Severity 9.9 · Critical Remote Code Execution in Roundcube Webmail.
We are seeing attackers leverage this deserialization flaw to take full control of affected systems. This vulnerability was recently added to the @[CISA](urn:li:organization:13010360) KEV catalog due to rapid weaponization by advanced threat groups.
Attackers are targeting unpatched webmail servers to steal login credentials and spy on sensitive communications. With millions of potential targets, the window for remediation before a full compromise is closing.
The uncomfortable truth: Your webmail is the most direct path for an attacker to compromise your corporate identity and internal communications.
→ Patch Roundcube Webmail to the latest security version 1.6.11 or 1.5.10 immediately.
→ Audit your mail server logs for unauthorized PHP object deserialization attempts.
→ Force a password reset for all users if your server was exposed and unpatched.
Have you confirmed that your webmail infrastructure is running the latest security patches? 👇
#Cybersecurity #EmailSecurity #ZeroTrust #VulnerabilityManagement #CISO #CodeDefence