How severe is CVE-2011-1936?

CVE-2011-1936 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2011-1936 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1936?

CVE-2011-1936 affects Xen. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-1936?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-1936 published?

CVE-2011-1936 was published on 2014-01-07 and last updated on 2026-06-16.

CVE-2011-1936

CVE-2011-1936 is a medium-severity vulnerability in Xen with a CVSS 2.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Xen
Published: 2014-01-07
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2011-1936?: 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.
How severe is CVE-2011-1936?: CVE-2011-1936 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2011-1936 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1936?: CVE-2011-1936 affects Xen. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-1936?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1936 published?: CVE-2011-1936 was published on 2014-01-07 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*

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