VIR Vulnerability Intelligence Relay

CVE-2016-7466

medium
Published 2016-12-10 · Modified 2026-05-06
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
6.0
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
CVSS v4 NEW
—
not yet in upstream
VIR risk
6.0

Description

Memory leak in the usb_xhci_exit function in hw/usb/hcd-xhci.c in QEMU (aka Quick Emulator), when the xhci uses msix, allows local guest OS administrators to cause a denial of service (memory consumption and possibly QEMU process crash) by repeatedly unplugging a USB device.

Predictions

Exploit likelihood
60%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact
OSVersionStatusFixed in
suse slesaffected
suse suse42.2affected
redhat rhel7.0not-affected
debian debianbookwormfixed1:2.7+dfsg-1
debian debianbullseyefixed1:2.7+dfsg-1
debian debianforkyfixed1:2.7+dfsg-1
debian debiansidfixed1:2.7+dfsg-1
debian debiantrixiefixed1:2.7+dfsg-1

Application impact
VendorProductVersionsFixed
qemuqemu{"endIncluding":"2.7.1"}
redhat redhatopenstack6.0
redhat redhatopenstack7.0
redhat redhatopenstack8
redhat redhatopenstack9
redhat redhatopenstack10
redhat redhatopenstack11
redhat redhatvirtualization4.0

References

CWEs

CWE-772

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.