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CVE-2016-7466
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…
Medium6.0EPSS 0.42%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.42% · top 64% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.0.
Weakness
Affected products
n/a
- affected n/a
References (9)
- [oss-security] 20160920 CVE Request Qemu: usb: xhci memory leakage during device unplug (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20160920 Re: CVE Request Qemu: usb: xhci memory leakage during device unplug (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201611-11 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 93029 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2017:2392 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- openSUSE-SU-2016:3237 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=b53dd4495ced2432a0b652ea895e651d07336f7e (opens in a new tab)x_refsource_CONFIRMx_transferred
- [qemu-devel] 20160913 [PATCH v2] usb:xhci:fix memory leak in usb_xhci_exit (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2017:2408 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_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)
Record last updated .