{"cve":"CVE-2023-2861","nvd":{"published":"2023-12-06T07:15:41.430","modified":"2026-06-17T05:53:38.917","status":"Modified","description":"A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.","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:H/A:N","score":7.1},"cwes":["CWE-284"],"references":["https://access.redhat.com/security/cve/CVE-2023-2861","https://bugzilla.redhat.com/show_bug.cgi?id=2219266","https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html","https://security.netapp.com/advisory/ntap-20240125-0005/","https://security.netapp.com/advisory/ntap-20240229-0002/"],"products":["qemu:qemu"],"source":"nvd","synced_at":"2026-10-19T21:42:34.585441961+00:00"},"epss":{"cve":"CVE-2023-2861","score":0.00376,"percentile":0.31575,"date":"2026-11-01"},"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."]}