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CVE-2014-7155
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode…
Medium5.8EPSS 0.97%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.8 | AV:A/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 0.97% · top 38% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.
Weakness
Affected products
n/a
- affected n/a
References (12)
- openSUSE-SU-2014:1281 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2014-12000 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- openSUSE-SU-2014:1279 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://xenbits.xen.org/xsa/advisory-105.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://support.citrix.com/article/CTX200218 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1030888 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- FEDORA-2014-12036 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- DSA-3041 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 61858 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 61890 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- GLSA-201412-42 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 70057 (opens in a new tab)vdb-entryx_refsource_BIDx_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)
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[](https://trackcve.app/cve/CVE-2014-7155)Record last updated .