CVE-2016-2198: n/a vulnerability

CVE-2016-2198: QEMU (aka Quick Emulator) built with the USB EHCI emulation support is vulnerable to a null pointer derefer...

QEMU (aka Quick Emulator) built with the USB EHCI emulation support is vulnerable to a null pointer dereference flaw. It could occur when an application attempts to write to EHCI capabilities registers. A privileged user inside quest could use this flaw to crash the QEMU process instance resulting in DoS.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 23:24 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2016-2198 is a QEMU virtualization flaw in USB EHCI emulation. A privileged user inside a guest VM could crash that VM's QEMU process, causing denial of service for the affected virtual machine rather than proven host compromise. Exposure is most likely on virtualization hosts running older QEMU builds with USB EHCI emulation enabled for guests. The bundle does not provide exact affected versions or CPEs, so package-level exposure must be checked against vendor advisories. Treat this as a stability and tenant-isolation risk for affected virtualization platforms. Prioritize patching shared or multi-tenant hosts first, especially where guest administrators are not fully trusted. Mitigation focus: Update QEMU packages using the relevant vendor security advisory.; Review Debian DLA-1497-1 if running Debian LTS QEMU packages.; Review Gentoo GLSA-201604-01 if running Gentoo QEMU packages..

Prepared: Jun 13, 2026, 12:51 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 29, 2016, 22:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
[debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security updateCVE reference · mailing-list, x_refsource_MLIST
https://bugzilla.redhat.com/show_bug.cgi?id=1301643CVE reference · x_refsource_CONFIRM
GLSA-201604-01CVE reference · vendor-advisory, x_refsource_GENTOO
[qemu-devel] 20160129 [PATCH] usb: ehci: add capability mmio write functionCVE reference · mailing-list, x_refsource_MLIST

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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