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CVE-2016-2392

23
FAUCET Score

CVE-2016-2392 describes a denial-of-service vulnerability in the USB Net device emulator of QEMU versions prior to 2.5.1, affecting products like Canonical QEMU and Ubuntu Linux. A local guest OS administrator can trigger a NULL pointer dereference and crash the QEMU process by manipulating USB configuration descriptor objects with a remote NDIS control message packet. This vulnerability has a CVSS score of 6.5 (Medium), indicating a low attack complexity and local privileges required, leading to high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.5.0CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:2.5.0:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
15.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 88th 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 Patches (2)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm-rhev

Vendor Advisories (1)

redhatCVE-2016-2392Low

Qemu: usb: null pointer dereference in remote NDIS control message handling

Feb 11, 2016

References

git.qemu.org
lists.nongnu.org / archive/html/qemu-stable/2016-03/msg00064.html
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
lists.debian.org / debian-lts-announce/2018/11/msg00038.html
lists.gnu.org / archive/html/qemu-devel/2016-02/msg02553.html
Vendor Advisory
security.gentoo.org / glsa/201604-01
openwall.com / lists/oss-security/2016/02/16/7
securityfocus.com / bid/83274
ubuntu.com / usn/USN-2974-1