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 flag that suppresses IOMMU TLB flushes…
- 6.8MediumCVSS base score
- 0.66%Exploitation in 30 daysEPSS · top 48% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By redhat
- 39 days later
· 39 days later
Published
- 11 years later
· 11 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 | 2.0 | Medium6.8 | AV:A/AC:H/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.66% · top 48% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Affected products
n/a
- affected n/a
References
8
- 55932 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 1029468 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- SUSE-SU-2014:0373 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2013-23466 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- GLSA-201407-03 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- FEDORA-2013-23457 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [Xen-announce] 20131210 Xen Security Advisory 80 (CVE-2013-6400) - IOMMU TLB flushing may be inadvertently suppressed (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20131210 Xen Security Advisory 80 (CVE-2013-6400) - IOMMU TLB flushing may be inadvertently suppressed (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)
- EUVD EUVD-2013-6221 (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-2013-6400)Record last updated .