{"cve":"CVE-2020-25742","nvd":{"published":"2020-10-06T15:15:15.007","modified":"2026-06-17T03:07:13.483","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L","score":3.2},"cwes":["CWE-476"],"references":["http://www.openwall.com/lists/oss-security/2020/09/29/1","https://bugzilla.redhat.com/show_bug.cgi?id=1883178","https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05294.html","https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Flsi_nullptr1","http://www.openwall.com/lists/oss-security/2020/09/29/1"],"products":["qemu:qemu"],"source":"nvd","synced_at":"2026-10-19T21:09:53.489947993+00:00"},"epss":{"cve":"CVE-2020-25742","score":0.00467,"percentile":0.40467,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}