CVE-2023-2861

7.1 highEPSS 0.4%

High (7.1) in qemu qemu. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.1 high

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
CWE: CWE-284
Published: 2023-12-06
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

qemu:qemu

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/

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