CVE-2015-3771: IOFireWireFamily in Apple OS X before 10.10.5 allows local users to gain privileges or cause a denial of se...

Security readout for executives and security teams

This is an old Apple OS X vulnerability in IOFireWireFamily. On OS X versions before 10.10.5, a local user could potentially gain higher privileges or crash the system through memory corruption. The public source bundle does not describe remote attack, affected subversions, exploit details, or active exploitation. Exposure is most likely limited to legacy Mac systems running Apple OS X before 10.10.5. Current supported macOS fleets are unlikely to be affected, but archived, lab, kiosk, or unmanaged machines should be checked. Treat this as a legacy endpoint hygiene issue. It is not presented as actively exploited or remotely reachable, but affected Macs could allow local privilege escalation. Prioritize discovery and retirement or upgrade of any OS X pre-10.10.5 systems. Mitigation focus: Upgrade affected OS X systems to 10.10.5 or later vendor-supported guidance.; Inventory and retire unsupported legacy OS X systems where upgrade is not practical.; Restrict local account access on any remaining affected Macs..

Prepared

Jun 13, 2026, 22:22 UTC (UTC+00:00)

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