Exim Vulnerability Lets Attackers Access Files Outside the Mail Spool

A high-severity directory traversal vulnerability in Exim (versions 4.88–4.99.4) allows local attackers to manipulate queue-related command-line arguments to access files outside the mail spool and potentially escalate privileges; Exim 4.99.5 fixes the issue by hardening argument validation and restricting queue options to privileged users, and administrators are strongly advised to patch immediately.