Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability

CVE-2023-42117

What is CVE-2023-42117?

A critical vulnerability exists in the Exim SMTP service, allowing remote attackers to execute arbitrary code on affected systems without requiring authentication. The issue stems from improper validation of user-supplied data, which leads to memory corruption. The vulnerability can be exploited via the default listening port TCP 25, providing an avenue for attackers to execute malicious code in the context of the current process. Organizations using Exim should prioritize remediation to safeguard their systems against potential exploitation.

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