CVE-2013-4154

Name: CVE-2013-4154
Creator: NVD / NIST
Published: 2013-09-30T21:55:09.223+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.20%

Last modified Jun 16, 2026

CVE-2013-4154 is a vulnerability of currently unknown severity. The qemuAgentCommand function in libvirt before 1.1.1, when a guest agent is not configured, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via vectors related to "agent based cpu (un)plug," as demonstrated by the "virsh vcpucount foobar --guest" command.. EPSS estimates a 2.20% chance of exploitation in the next 30 days.

Description

The qemuAgentCommand function in libvirt before 1.1.1, when a guest agent is not configured, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via vectors related to "agent based cpu (un)plug," as demonstrated by the "virsh vcpucount foobar --guest" command.

Metrics

EPSS Probability

2.20%

80.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Redhat	Libvirt	<= 1.1.0
Redhat	Libvirt	1.0.0
Redhat	Libvirt	1.0.1
Redhat	Libvirt	1.0.2
Redhat	Libvirt	1.0.3
Redhat	Libvirt	1.0.4
Redhat	Libvirt	1.0.5
Redhat	Libvirt	1.0.6

References

Timeline

Published: Sep 30, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-4154?

How severe is CVE-2013-4154?

Severity scoring for CVE-2013-4154 is pending analysis. The EPSS model estimates a 2.20% probability of exploitation in the next 30 days.

How do I fix CVE-2013-4154?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-4154?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST