CVE-2016-9602: debian debian_linux
Vulnerability summary
CVE-2016-9602 is a high (CVSS 9.0) vulnerability in debian debian_linux. EPSS estimates a 3.65% chance of exploitation in the next 30 days, higher than 89.6% of scored vulnerabilities.
Not severe (CVSS 7.6, adjacent network); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 10 · Related 7Timeline
- 26-04-2018PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 4 sources · 2 versions- NVDNIST8.8HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated7.6HighCVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
3.65%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
Decrease -0.07 pp
From 3.72% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: adjacent network, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- qemu< 1:2.8+dfsg-3
- debian_linuxEOL8.0
Qemu1 product
- qemu< 2.9
Ubuntu1 product
- qemu< 2.0.0+dfsg-2ubuntu1.33 | < 1:2.5+dfsg-5ubuntu10.11
Unspecified1 product
- qemuqemu 2.9
4 vendors · 5 products
References
14 links- lists.gnu.org/archive/html/qemu-devel/2017-02/msg04347.htmlMailing ListX Refsource MLISTThird Party AdvisoryREPORT
lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing ListX Refsource MLISTThird Party Advisory- bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9602X Refsource CONFIRMIssue TrackingThird Party Advisory
- www.openwall.com/lists/oss-security/2017/01/17/12Mailing ListX Refsource MLISTThird Party AdvisoryREPORT
- lists.gnu.org/archive/html/qemu-devel/2017-01/msg06225.htmlMailing ListX Refsource MLISTThird Party Advisory