CVE-2014-1666
The do_physdev_op function in Xen 4.1.5, 4.1.6.1, 4.2.2 through 4.2.3, and 4.3.x does not properly restrict access to the (1)…
- 8.3HighCVSS base score
- 0.88%Exploitation in 30 daysEPSS · top 41% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The do_physdev_op function in Xen 4.1.5, 4.1.6.1, 4.2.2 through 4.2.3, and 4.3.x does not properly restrict access to the (1) PHYSDEVOP_prepare_msix and (2) PHYSDEVOP_release_msix operations, which allows local PV guests to cause a denial of service (host or guest malfunction) or possibly gain privileges via unspecified vectors.
Timeline
ID reserved
By mitre
- 2 days later
· 2 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 | High8.3 | AV:A/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.88% · top 41% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.3.
Affected products
n/a
- affected n/a
References
14
- 102536 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 65125 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- xen-cve20141666-priv-esc(90675) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- SUSE-SU-2014:0373 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2014-1552 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://support.citrix.com/article/CTX200288 (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-201407-03 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- FEDORA-2014-1559 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [oss-security] 20140123 Xen Security Advisory 87 (CVE-2014-1666) - PHYSDEVOP_{prepare,release}_msix exposed to unprivileged guests (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 1029684 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- SUSE-SU-2014:0372 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://xenbits.xen.org/xsa/advisory-87.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 56650 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://xenbits.xen.org/xsa/xsa87-unstable-4.3.patch (opens in a new tab)x_refsource_MISCx_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-2014-1740 (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-2014-1666)Record last updated .