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CVE-2016-2198
QEMU (aka Quick Emulator) built with the USB EHCI emulation support is vulnerable to a null pointer dereference flaw. It could occur when…
Medium5.5EPSS 0.44%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
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.
Timeline
ID reserved
By redhat
- 11 months later
· 11 months later
Published
- 8 years later
· 8 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.44% · top 62% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
n/a
- affected n/a
References (6)
- [oss-security] 20160130 Re: CVE request Qemu: usb: ehci null pointer dereference in ehci_caps_write (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1301643 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20160129 CVE request Qemu: usb: ehci null pointer dereference in ehci_caps_write (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201604-01 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [qemu-devel] 20160129 [PATCH] usb: ehci: add capability mmio write function (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2016-2198)Record last updated .