CVE-2006-6563: Stack-based buffer overflow in the pr_ctrls_recv_request function in ctrls.c in the mod_ctrls module in Pro...

Security readout for executives and security teams

CVE-2006-6563 is a local-code-execution flaw in ProFTPD's optional controls module. A user who already has local access could trigger a stack buffer overflow and potentially run code with the affected service context. It is old, but still relevant where legacy ProFTPD builds remain deployed. Exposure is most likely on legacy systems running ProFTPD before 1.3.1rc1 with mod_ctrls enabled or compiled in. The provided affected-product metadata is incomplete, so confirm against installed package versions and distribution advisories. Prioritize remediation for internet-facing FTP infrastructure that also allows local users, shared hosting, or shell accounts. The vulnerability is old, but public exploit material and arbitrary-code-execution impact make forgotten legacy servers a meaningful risk. Mitigation focus: Upgrade ProFTPD to 1.3.1rc1 or a vendor-fixed package.; Review Mandriva, Gentoo, OpenPKG, Trustix, or relevant distro advisories.; Disable or remove mod_ctrls if not required, after checking vendor guidance..

Prepared

Jun 29, 2026, 08:45 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.