{"id":"CVE-2020-25742","details":"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.","modified":"2026-03-15T22:35:10.226153Z","published":"2020-10-06T15:15:15.007Z","references":[{"type":"ADVISORY","url":"https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Flsi_nullptr1"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2020/09/29/1"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1883178"},{"type":"FIX","url":"https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05294.html"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"5.1.1"}]},{"events":[{"introduced":"0"},{"fixed":"5.1.1"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25742.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L"}]}