CVE-2006-5751: Integer overflow in the get_fdb_entries function in net/bridge/br_ioctl.c in the Linux kernel before 2.6.18...

Security readout for executives and security teams

CVE-2006-5751 is a Linux kernel flaw where a local user could trigger an integer overflow in bridge forwarding database ioctl handling. The reported impact is arbitrary code execution, which can imply privilege escalation. The issue is old and tied to kernels before 2.6.18.4, but legacy systems may still matter. Exposure is most likely on obsolete Linux systems or appliances using Linux kernel code before 2.6.18.4 or unpatched vendor backports. The source bundle indicates local-user reachability, not remote unauthenticated exposure. Prioritize if legacy Linux systems remain in production, especially shared servers or appliances with local users. Modern supported kernels should already be fixed, so urgency depends on inventory confidence. Mitigation focus: Identify systems running Linux kernels before 2.6.18.4.; Apply the relevant upstream or vendor kernel update.; Check SUSE, Red Hat, Mandriva, or appliance vendor advisories where applicable..

Prepared

Jun 29, 2026, 09:12 UTC (UTC+00:00)

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