CVE-2016-6888: Integer overflow in the net_tx_pkt_init function in hw/net/net_tx_pkt.c in QEMU (aka Quick Emulator) allows...

Security readout for executives and security teams

This QEMU flaw lets an administrator inside a guest virtual machine crash the QEMU process by abusing packet fragmentation handling. The expected business impact is denial of service for the affected VM, not host takeover, based on the provided sources. Exposure is most relevant for virtualization hosts running affected QEMU builds where guest administrators are untrusted or tenant-controlled. Exact affected QEMU versions are not provided in the bundle, so package provenance must be checked against vendor advisories or the upstream commit. Treat this as a contained availability risk. Patch during normal vulnerability maintenance, faster for shared hosting or tenant-controlled guest environments where a guest admin could disrupt service. Mitigation focus: Apply QEMU updates from your operating system or virtualization vendor.; Verify whether the upstream QEMU commit is present in deployed builds.; Prioritize multi-tenant or untrusted-guest virtualization environments..

Prepared

Jun 13, 2026, 13:16 UTC (UTC+00:00)

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