CVE-2014-7840: Qemu

High severity, CVSS 7.5. EPSS: 4.1% chance of exploitation in the next 30 days.

The host_from_stream_offset function in arch_init.c in QEMU, when loading RAM during migration, allows remote attackers to execute arbitrary code via a crafted (1) offset or (2) length value in savevm data.

Affected products

• Qemu Qemu: up to and including 2.1.3
• Red Hat Enterprise Linux Desktop: version 7.0 only
• Red Hat Enterprise Linux Eus: version 7.3 only; version 7.4 only; version 7.5 only; version 7.6 only; version 7.7 only
• Red Hat Enterprise Linux Server: version 7.0 only
• Red Hat Enterprise Linux Server Aus: version 7.3 only; version 7.4 only; version 7.6 only; version 7.7 only
• Red Hat Enterprise Linux Workstation: version 7.0 only
• Red Hat Virtualization: version 3.0 only

Published 2014-12-12. Last modified 2026-06-17.