CVE-2015-7504: Debian Linux

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Heap-based buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU allows guest OS administrators to cause a denial of service (instance crash) or possibly execute arbitrary code via a series of packets in loopback mode.

Affected products

• Debian Debian Linux: version 7.0 only; version 8.0 only
• Qemu Qemu: up to and including 2.4.1; version 2.5.0 only
• Xen Xen: any version

Published 2017-10-16. Last modified 2026-06-17.