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CVE-2011-1936
Xen, when using x86 Intel processors and the VMX virtualization extension is enabled, does not properly handle cpuid instruction emulation…
Medium4.6EPSS 0.47%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
Xen, when using x86 Intel processors and the VMX virtualization extension is enabled, does not properly handle cpuid instruction emulation when exiting the VM, which allows local guest users to cause a denial of service (guest crash) via unspecified vectors.
Timeline
ID reserved
By redhat
- 3 years later
· 3 years 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 | Medium4.6 | AV:A/AC:H/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 0.47% · top 59% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.6.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (2)
- RHSA-2011:0927 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20110707 CVE-2011-1780, CVE-2011-1936, kernel/xen issues (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)
- 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-2011-1936)Record last updated .