CVE-2011-2511

CVE-2011-2511 is a medium-severity vulnerability in Redhat Libvirt with a CVSS 2.0 base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

Description

Integer overflow in libvirt before 0.9.3 allows remote authenticated users to cause a denial of service (libvirtd crash) and possibly execute arbitrary code via a crafted VirDomainGetVcpus RPC call that triggers memory corruption.

Frequently asked questions

What is CVE-2011-2511?
Integer overflow in libvirt before 0.9.3 allows remote authenticated users to cause a denial of service (libvirtd crash) and possibly execute arbitrary code via a crafted VirDomainGetVcpus RPC call that triggers memory corruption.
How severe is CVE-2011-2511?
CVE-2011-2511 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2011-2511 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2511?
CVE-2011-2511 primarily affects Redhat Libvirt. In total, 58 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2511?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-2511 published?
CVE-2011-2511 was published on 2011-08-10 and last updated on 2026-06-16.

References

Affected products (58)

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