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CVE-2016-9602

23
FAUCET Score

CVE-2016-9602 describes an improper link following vulnerability in Qemu versions prior to 2.9, specifically when built with VirtFS, affecting Debian and Qemu products. A privileged guest user could exploit this flaw to access the host file system outside of the shared folder, potentially leading to privilege escalation. With a CVSS score of 8.8 (High), this vulnerability has a low attack complexity and no user interaction required, allowing for high impact on confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.9CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.6HIGH

CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.79%
Probability of exploitation in next 30 days
EPSS Percentile
88.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0379 is in the 88th percentile among its peer group of 17,822 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2016-9602Important

Qemu: 9p: virtfs allows guest to access host filesystem

Jan 17, 2017

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2018/09/msg00007.html
Mailing ListThird Party Advisory
lists.gnu.org / archive/html/qemu-devel/2017-01/msg06225.html
Mailing ListThird Party Advisory
lists.gnu.org / archive/html/qemu-devel/2017-02/msg04347.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/201704-01
Third Party Advisory
openwall.com / lists/oss-security/2017/01/17/12
Mailing ListThird Party Advisory
securityfocus.com / bid/95461
Third Party AdvisoryVDB Entry
securitytracker.com / id/1037604
Third Party AdvisoryVDB Entry