CVE-2011-2511

4.0 MEDIUM 4% exploit odds Fix listed

What it is

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.

At a glance

Exploitability: Can be exploited over the network with a login. Limited direct impact.
Exploit odds: 3.5% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2011-08-10 20:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:31 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.5% in the next 30 days (EPSS).
Severity: 4.0 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2011-08-10 20:55 UTC
Last modified: 2026-06-16 23:31 UTC
Exploit probability: 3.5% · EPSS, next 30 days
Weakness: CWE-189
Record status: Modified

Affected

Redhat Libvirt ≤ 0.9.2
Redhat Libvirt 0.0.1
Redhat Libvirt 0.0.2
Redhat Libvirt 0.0.3
Redhat Libvirt 0.0.4
Redhat Libvirt 0.0.5
Redhat Libvirt 0.0.6
Redhat Libvirt 0.1.0

Attack profile CVSS 2.0 · 4.0

Attack vector: Network
Complexity: Low
Authentication: Single
Confidentiality: None
Integrity: None
Availability: Partial

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2011-2511.md and follow it. Check whether this project is affected by CVE-2011-2511. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record