What is CVE-2016-4037?

CVE-2016-4037 is a medium-severity vulnerability in Qemu, classified under Uncontrolled Resource Consumption. CVSS score: 6.0/10. Published 2016-05-23.

How severe is CVE-2016-4037?

Medium severity. CVSS v3 base score is 6.0 out of 10.

Resource exhaustion in Qemu

CVE-2016-4037

The ehci_advance_state function in hw/usb/hcd-ehci.c in QEMU allows local guest OS administrators to cause a denial of service (infinite loop and CPU consumption) via a circular split isochronous transfer descriptor (siTD) list, a related issue to CVE-2015-8558.

Vulnerability class: DoS (Denial of Service)

Published 2016-05-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (36.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Qemu — versions 2.6.0
Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
Debian Linux — versions 8.0
Fedoraproject Fedora — versions 22, 23, 24

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

www.openwall.com/lists/oss-security/2016/04/18/3 (mailing-list, Mailing List)
git.qemu.org/
lists.fedoraproject.org/pipermail/package-announce/2016-May/184209.html (vendor-advisory, Mailing List, Third Party Advisory)
lists.fedoraproject.org/pipermail/package-announce/2016-April/183275.html (vendor-advisory, Mailing List, Third Party Advisory)
lists.gnu.org/archive/html/qemu-devel/2016-04/msg02691.html (Vendor Advisory, mailing-list, Patch, Mailing List)
lists.fedoraproject.org/pipermail/package-announce/2016-May/183350.html (vendor-advisory, Mailing List, Third Party Advisory)
www.ubuntu.com/usn/USN-2974-1 (vendor-advisory, Third Party Advisory)
www.securityfocus.com/bid/86283 (VDB Entry, Third Party Advisory, vdb-entry)
lists.gnu.org/archive/html/qemu-devel/2016-04/msg02734.html (Vendor Advisory, mailing-list, Mailing List)
lists.debian.org/debian-lts-announce/2018/11/msg00038.html (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2016-4037?: CVE-2016-4037 is a medium-severity vulnerability in Qemu, classified under Uncontrolled Resource Consumption. CVSS score: 6.0/10. Published 2016-05-23.
How severe is CVE-2016-4037?: Medium severity. CVSS v3 base score is 6.0 out of 10.