CVE-2013-6400
Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the...
Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of service (host crash) or gain privileges via unspecified vectors.
Exploit likelihood
What each source reports
NVD Score used
Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of service (host crash) or gain privileges via unspecified vectors.
- Record
CVE-2013-6400- CVSS 2.0
- 6.8 Medium
AV:A/AC:H/Au:N/C:C/I:C/A:C - Weakness
- CWE-264
- Updated
- 2026-11-02
CVE List No score
Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of service (host crash) or gain privileges via unspecified vectors.
- Record
CVE-2013-6400- Updated
- 2026-11-02
EUVDEUVD-2013-6221 No score
Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of service (host crash) or gain privileges via unspecified vectors.
- Record
EUVD-2013-6221- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f6x8-9q7w-8j23 No score
Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the...
Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of service (host crash) or gain privileges via unspecified vectors.
- Record
GHSA-f6x8-9q7w-8j23- Updated
- 2026-11-02
OSV No score
Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of service (host crash) or gain privileges via unspecified vectors.
- Record
CVE-2013-6400- Updated
- 2026-11-02
OSVDEBIAN-CVE-2013-6400 No score
Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of service (host crash) or gain privileges via unspecified vectors.
- Record
DEBIAN-CVE-2013-6400- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2013-6400 is a medium vulnerability (CVSS 6.8) in Xen, published December 13, 2013. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.66%, the 51st percentile. Fixed in xen 4.4.0-1.
References
secunia.com/advisories/55932
securitytracker.com/id/1029468
lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
lists.fedoraproject.org/pipermail/package-announce/2013-December/125081.html
security.gentoo.org/glsa/glsa-201407-03.xml