{"cve":"CVE-2021-3736","nvd":{"published":"2022-08-23T16:15:09.687","modified":"2026-06-17T04:05:39.900","status":"Modified","description":"A flaw was found in the Linux kernel. A memory leak problem was found in mbochs_ioctl in samples/vfio-mdev/mbochs.c in Virtual Function I/O (VFIO) Mediated devices. This flaw could allow a local attacker to leak internal kernel information.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":5.5},"cwes":["CWE-401","CWE-200"],"references":["https://access.redhat.com/security/cve/CVE-2021-3736","https://bugzilla.redhat.com/show_bug.cgi?id=1995570","https://github.com/torvalds/linux/commit/de5494af4815a4c9328536c72741229b7de88e7f","https://access.redhat.com/security/cve/CVE-2021-3736","https://bugzilla.redhat.com/show_bug.cgi?id=1995570"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:34:18.502168378+00:00"},"epss":{"cve":"CVE-2021-3736","score":0.00245,"percentile":0.15731,"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."]}