High
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-9602
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:31 UTC · Revision 1
Source evidence
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.
osv:CVE-2016-9602
Complete source record
{
"id": "57af351b9aea25d237d003ea1fb0694f988054e5b1d23826ee5daba6932565c9",
"url": "https://osv.dev/vulnerability/CVE-2016-9602",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-9602",
"summary": "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.",
"evidence": "osv:CVE-2016-9602",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2016-9602",
"aliases": [
"CVE-2016-9602"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/qemu/qemu",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "359c41abe32638adad503e386969fa428cecff52"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.9"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
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"v2.9.0-rc4",
"v2.9.0-rc3",
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"v1.7.0-rc1",
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"v1.6.0",
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"v1.5.0",
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"v1.5.0-rc0",
"v1.4.0",
"v1.4.0-rc2",
"v1.4.0-rc1",
"v1.4.0-rc0",
"v1.3.0",
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"v1.3.0-rc1",
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"v1.2.0",
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"v1.1.0-rc2",
"v1.1-rc2",
"v1.1-rc1",
"v1.1-rc0",
"v1.0",
"v1.0-rc4",
"v1.0-rc3",
"v1.0-rc2",
"v1.0-rc1",
"v1.0-rc0",
"v0.14.0-rc0",
"v0.13.0-rc0",
"v0.12.0-rc0",
"v0.11.0-rc0",
"v0.5.0",
"v0.4.4",
"v0.4.3",
"v0.4.2",
"v0.4.1",
"v0.4.0",
"v0.3.0",
"v0.2.0",
"v0.1.6",
"v0.1.5",
"v0.1.4",
"v0.1.3",
"v0.1.1",
"v0.1.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-9602.json"
}
},
{
"ranges": [
{
"repo": "https://gitlab.com/qemu-project/qemu",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "359c41abe32638adad503e386969fa428cecff52"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.9"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v2.9.0-rc5",
"v2.9.0-rc4",
"v2.9.0-rc3",
"v2.9.0-rc2",
"v2.9.0-rc1",
"v2.8.0",
"v2.9.0-rc0",
"v2.8.0-rc4",
"v2.8.0-rc3",
"v2.8.0-rc2",
"v2.8.0-rc1",
"v2.8.0-rc0",
"v2.7.0",
"v2.7.0-rc5",
"v2.7.0-rc4",
"v2.7.0-rc3",
"v2.7.0-rc2",
"v2.6.0",
"v2.7.0-rc1",
"v2.7.0-rc0",
"v2.6.0-rc5",
"v2.6.0-rc4",
"v2.6.0-rc3",
"v2.6.0-rc2",
"v2.6.0-rc1",
"v2.6.0-rc0",
"v2.5.0",
"v2.5.0-rc4",
"v2.5.0-rc3",
"v2.5.0-rc2",
"v2.5.0-rc1",
"v2.5.0-rc0",
"v2.4.0",
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"v2.4.0-rc3",
"v2.3.0",
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"v2.0.0",
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-9602.json"
}
}
],
"modified": "2026-10-24T10:30:19.556181638Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html",
"https://lists.gnu.org/archive/html/qemu-devel/2017-01/msg06225.html",
"https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg04347.html",
"https://security.gentoo.org/glsa/201704-01",
"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9602"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2016-9602",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 430050,
"published_at": "2018-04-26T19:29:00.23+00:00"
}