CVE-2016-4037: The ehci_advance_state function in hw/usb/hcd-ehci.c in QEMU allows local guest OS administrators to cause...

Security readout for executives and security teams

CVE-2016-4037 is a QEMU denial-of-service issue. A local administrator inside a guest VM could make the QEMU host process spin in an infinite loop, consuming CPU. The source bundle does not show data theft, guest escape, or remote exploitation evidence. Exposure is most relevant to virtualization hosts running QEMU with emulated EHCI USB available to guests, especially where tenants or users have administrative control inside guest operating systems. Exact affected QEMU versions are not provided in the bundle. Treat as a platform availability risk for QEMU-based virtualization. Prioritize patching shared, multi-tenant, or user-administered VM hosts; isolated lab systems are lower urgency unless availability is critical. Mitigation focus: Apply QEMU security updates from your OS or virtualization vendor.; Confirm packages include the upstream QEMU fix for descriptor processing limits.; Review vendor advisories before relying on configuration-only workarounds..

Prepared

Jun 13, 2026, 14:22 UTC (UTC+00:00)

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