CVE-2011-2511

Libvirt vulnerability

CVSS

4.0

EPSS

3.5%

EPSS pct

88th

Exploited

No known

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.

Affected vendor

Redhat

Affected product

Libvirt

CVSS vector

AV:N/AC:L/Au:S/C:N/I:N/A:P

Weakness type (CWE)

CWE-189

Published

2011-08-10

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring single-factor authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2011-2511

Confirm whether Redhat Libvirt is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2011-2511.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-2511

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