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CVE-2015-8568

17
FAUCET Score

CVE-2015-8568 describes a memory leak vulnerability in QEMU, specifically when configured with VMWARE VMXNET3 paravirtual NIC emulator support, affecting Debian and QEMU products. A local guest user can trigger a denial of service on the host by repeatedly activating the vmxnet3 device, leading to host memory exhaustion. With a CVSS score of 6.5 (Medium), this vulnerability has a low attack complexity and requires local access, but can result in high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.5.1CPE 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: 3.1

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
0.46%
Probability of exploitation in next 30 days
EPSS Percentile
37.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0046 is in the 91st percentile among its peer group of 15,940 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, 0.0 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

Patch Available

Vendor Patches (2)

redhatpatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm

Vendor Advisories (1)

redhatCVE-2015-8568Low

Qemu: net: vmxnet3: host memory leakage

Dec 2, 2015

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
lists.gnu.org / archive/html/qemu-devel/2015-12/msg02299.html
Mailing ListPatchThird Party Advisory
security.gentoo.org / glsa/201602-01
Third Party Advisory
debian.org / security/2016/dsa-3471
Third Party Advisory
openwall.com / lists/oss-security/2015/12/15/10
Mailing ListThird Party Advisory
securityfocus.com / bid/79721
Third Party AdvisoryVDB Entry