CVE-2011-1763

CVE-2011-1763 is a high-severity vulnerability in Xen with a CVSS 2.0 base score of 7.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The get_free_port function in Xen allows local authenticated DomU users to cause a denial of service or possibly gain privileges via unspecified vectors involving a new event channel port.

Frequently asked questions

What is CVE-2011-1763?
The get_free_port function in Xen allows local authenticated DomU users to cause a denial of service or possibly gain privileges via unspecified vectors involving a new event channel port.
How severe is CVE-2011-1763?
CVE-2011-1763 has a CVSS 2.0 base score of 7.7, rated high severity.
Is CVE-2011-1763 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1763?
CVE-2011-1763 affects Xen. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-1763?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2011-1763 published?
CVE-2011-1763 was published on 2014-01-07 and last updated on 2026-06-16.

References

Affected products (1)

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