CVE-2020-25742: Qemu

Low severity, CVSS 3.2. EPSS: 0.5% chance of exploitation in the next 30 days.

pci_change_irq_level in hw/pci/pci.c in QEMU before 5.1.1 has a NULL pointer dereference because pci_get_bus() might not return a valid pointer.

Affected products

• Qemu Qemu: before 5.1.1 (fixed in 5.1.1)

Published 2020-10-06. Last modified 2026-06-17.