Quick Emulator (Qemu) built with the VirtFS, host directory sharing via Plan 9 File…
Priority MEDIUM 40CWE-732Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.00855 58th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* | up to 2.8.1.1 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:2.9.0:rc0:*:*:*:*:*:* | 2.9.0 rc0 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:2.9.0:rc1:*:*:*:*:*:* | 2.9.0 rc1 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:2.9.0:rc2:*:*:*:*:*:* | 2.9.0 rc2 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:2.9.0:rc3:*:*:*:*:*:* | 2.9.0 rc3 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:2.9.0:rc4:*:*:*:*:*:* | 2.9.0 rc4 | Vulnerable | QEMU |
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Versions up to 2.8.1.1 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:2.9.0:rc0:*:*:*:*:*:* Versions 2.9.0 rc0 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:2.9.0:rc1:*:*:*:*:*:* Versions 2.9.0 rc1 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:2.9.0:rc2:*:*:*:*:*:* Versions 2.9.0 rc2 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:2.9.0:rc3:*:*:*:*:*:* Versions 2.9.0 rc3 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:2.9.0:rc4:*:*:*:*:*:* Versions 2.9.0 rc4 Vulnerable ·QEMU
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 10 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)
- Red Hat Enterprise Linux OpenStack Platform 6 (Juno)
- Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
- Red Hat OpenStack Platform 10 (Newton)
- Red Hat OpenStack Platform 8 (Liberty)
- Red Hat OpenStack Platform 9 (Mitaka)
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7471
- 2026-10-03 Alias added: GHSA-cjfg-wq59-q7v2
References
More Qemu vulnerabilities
- TI-2024-16148 QEMU before 8.2.0 has an integer underflow, and resultant buffer overflow, via a TI… CVSS 3.1HIGH 8.8
- TI-2022-02736 Uncontrolled resource consumption in QEMU CVSS 3.1HIGH 7.8
- TI-2023-02681 Qemu: 9pfs: improper access control on special files CVSS 3.1HIGH 7.1
- TI-2019-09678 The QMP migrate command in QEMU version 4.0.0 and earlier is vulnerable to OS command… CVSS 3.0CRITICAL 9.8
- TI-2024-03326 Qemu-kvm: net: assertion failure in update_sctp_checksum() CVSS 3.1MEDIUM 5.5
- TI-2023-22631 QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2017-7471 · CVE Program
- CVE-2017-7471 · NVD
- FIRST EPSS
- GHSA-cjfg-wq59-q7v2 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-7471 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences