{"cve":"CVE-2020-27661","nvd":{"published":"2021-06-02T16:15:08.320","modified":"2026-06-17T03:09:27.427","status":"Modified","description":"A divide-by-zero issue was found in dwc2_handle_packet in hw/usb/hcd-dwc2.c in the hcd-dwc2 USB host controller emulation of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","score":6.5},"cwes":["CWE-369"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1890653","https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=bea2a9e3e00b275dc40cfa09c760c715b8753e03","https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg04263.html","https://security.netapp.com/advisory/ntap-20210720-0010/","https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1770368.html"],"products":["qemu:qemu"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2020-27661","score":0.00314,"percentile":0.24389,"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."]}