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CVE-2016-9915

22
FAUCET Score

CVE-2016-9915 describes a memory leak in QEMU's 9pfs handle backend (hw/9pfs/9p-handle.c) affecting Debian and QEMU products. A local, privileged guest OS user can exploit this by leveraging a missing cleanup operation, leading to host memory consumption and potential QEMU process crashes, resulting in a denial of service. The vulnerability has a CVSS score of 6.5 (Medium), indicating a low attack complexity and requiring local access with low privileges to achieve high availability impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.7.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
2.8.0CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:2.8.0:rc0:*:*:*:*:*:*
2.8.0CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:2.8.0:rc1:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
35.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 90th percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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-2016-9915Low

Qemu: 9pfs: memory leakage via proxy/handle callbacks

Nov 21, 2016

References

git.qemu.org
lists.debian.org / debian-lts-announce/2018/09/msg00007.html
Third Party Advisory
lists.gnu.org / archive/html/qemu-devel/2016-11/msg03278.html
PatchVendor Advisory
security.gentoo.org / glsa/201701-49
Third Party Advisory
openwall.com / lists/oss-security/2016/12/06/11
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2016/12/08/7
Mailing ListThird Party Advisory
securityfocus.com / bid/94729
Third Party AdvisoryVDB Entry