CVE-2017-7471

9.0 criticalEPSS 0.9%

Critical (9.0) in qemu qemu. EPSS 0.9% chance of exploitation in the next 30 days.

Quick Emulator (Qemu) built with the VirtFS, host directory sharing via Plan 9 File System (9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing files on a shared host directory. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host.

Severity

CVSS 3.1

9.0 critical

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

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE: CWE-732
Published: 2018-07-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

qemu:qemu

References

http://www.openwall.com/lists/oss-security/2017/04/19/2
http://www.securityfocus.com/bid/97970
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9c6b899f7a46893ab3b671e341a2234e9c0c060e
https://security.gentoo.org/glsa/201706-03

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