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CVE-2016-4037

21
FAUCET Score

CVE-2016-4037 describes a denial-of-service vulnerability in QEMU's ehci_advance_state function, affecting products from Canonical, Debian, and Fedora Project. A local guest OS administrator can trigger an infinite loop and high CPU consumption by crafting a circular split isochronous transfer descriptor list. This vulnerability has a CVSS score of 6.0 (Medium), indicating a local attack vector with low complexity, requiring high privileges, and 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.

Impacted Technologies

VendorProductVersion(s)CPE
22CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
23CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
24CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*
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:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.0MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.5
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
36.3%
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 86th percentile among its peer group of 3,720 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 (7)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: qemu-kvm
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
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)Fixed in: qemu-kvm-rhev
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno)Fixed in: qemu-kvm-rhev
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)Fixed in: qemu-kvm-rhev
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty)Fixed in: qemu-kvm-rhev

Vendor Advisories (1)

redhatCVE-2016-4037Low

Qemu: usb: Infinite loop vulnerability in usb_ehci using siTD process

Apr 18, 2016

References

git.qemu.org
lists.fedoraproject.org / pipermail/package-announce/2016-April/183275.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2016-May/183350.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2016-May/184209.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2018/11/msg00038.html
Mailing ListThird Party Advisory
lists.gnu.org / archive/html/qemu-devel/2016-04/msg02691.html
Mailing ListPatchVendor Advisory
lists.gnu.org / archive/html/qemu-devel/2016-04/msg02734.html
Mailing ListVendor Advisory
openwall.com / lists/oss-security/2016/04/18/3
Mailing List
openwall.com / lists/oss-security/2016/04/18/6
Mailing List
securityfocus.com / bid/86283
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2974-1
Third Party Advisory