CVE-2016-8576

What it is

The xhci_ring_fetch function in hw/usb/hcd-xhci.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit the number of link Transfer Request Blocks (TRB) to process.

At a glance

Exploitability

Can be exploited locally on the machine with an admin-level account. High risk of service disruption.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2016-11-04 21:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:54 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.4% in the next 30 days (EPSS).
• Severity: 6.0 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2016-11-04 21:59 UTC

Last modified

2026-06-17 00:54 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-770 · Allocation without limits

Record status

Modified

Affected

• Qemu ≤ 2.7.1
• Opensuse Leap 42.2
• Redhat Openstack 6.0
• Redhat Openstack 7.0
• Redhat Openstack 8
• Redhat Openstack 9
• Redhat Openstack 10
• Redhat Openstack 11

Attack profile CVSS 3.1 · 6.0

Attack vector

Local

Complexity

Low

Privileges needed

High

User interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2016-8576.md and follow it. Check whether this project is affected by CVE-2016-8576. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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