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Exim

2 articles tagged with "Exim"

Vulnerabilities3 min read

Exim Mail Server RCE Requires Zero Auth—Patch to 4.99.3 Now

CVE-2026-45185 is a use-after-free in Exim affecting GnuTLS builds with BDAT support. Unauthenticated attackers can achieve remote code execution via crafted SMTP traffic.

Marcus ChenJun 7, 2026

Vulnerabilities3 min read

Exim 'Dead.Letter' Flaw Enables Unauthenticated RCE on Mail Servers

CVE-2026-45185 is a critical use-after-free vulnerability in Exim mail servers using GnuTLS. XBOW researchers call it one of the highest-caliber bugs found in Exim.

Marcus ChenMay 13, 2026