Zero-click RCE in FreeScout urges immediate patching
⚠️ Ox Security has disclosed a zero-click remote code execution (RCE) vulnerability affecting FreeScout, tracked as CVE-2026-28289 (Mail2Shell), which bypasses an earlier fix (CVE-2026-27636). By sending a single crafted email to any address configured in FreeScout, an attacker can execute code on the server without authentication and without any user interaction. Ox warned thousands of instances may be exposed and urged immediate upgrades to v1.8.207 or later. Administrators are also advised to disable AllowOverrideAll in Apache on affected servers.
