CVE-2023-1386

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. When a local user in the guest writes an executable file with SUID or SGID, none of these privileged bits are correctly dropped. As a result, in rare circumstances, this flaw could be used by malicious users in the guest to elevate their privileges within the guest and help a host local user to elevate privileges on the host.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-281

Affected software

No affected versions have been published.

Timeline

Published: Jul 24, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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