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CVE-2016-9602
Qemu before version 2.9 is vulnerable to an improper link following when built with the VirtFS. A privileged user inside guest could use…
High7.6EPSS 3.6%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
Qemu before version 2.9 is vulnerable to an improper link following when built with the VirtFS. 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.
Timeline
ID reserved
By redhat
- 17 months later
· 17 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.0 | High7.6 | CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
| NVDNVD · Modified | 3.0 | High8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.6% · top 10% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.6.
Weakness
Affected products
- affected qemu 2.9
References (8)
- [qemu-devel] 20170220 [PATCH 00/29] 9pfs: local: fix vulnerability to symlink attacks (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 1037604 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- [debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9602 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20170117 CVE-2016-9602 Qemu: 9p: virtfs allows guest to access host filesystem (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [qemu-devel] 20170130 [PATCH RFC 00/36] 9pfs: local: fix vulnerability to symlink attacks (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201704-01 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 95461 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2016-9602)Record last updated .