How severe is CVE-2013-4311?

CVE-2013-4311 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2013-4311 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4311?

CVE-2013-4311 primarily affects Redhat Libvirt. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4311?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-4311 published?

CVE-2013-4311 was published on 2013-10-03 and last updated on 2026-06-16.

CVE-2013-4311

CVE-2013-4311 is a medium-severity vulnerability in Redhat Libvirt with a CVSS 2.0 base score of 4.6. 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-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Redhat Libvirt
Published: 2013-10-03
Last modified: 2026-06-16

Description

libvirt 1.0.5.x before 1.0.5.6, 0.10.2.x before 0.10.2.8, and 0.9.12.x before 0.9.12.2 allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition in pkcheck via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288.

Frequently asked questions

What is CVE-2013-4311?: libvirt 1.0.5.x before 1.0.5.6, 0.10.2.x before 0.10.2.8, and 0.9.12.x before 0.9.12.2 allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition in pkcheck via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288.
How severe is CVE-2013-4311?: CVE-2013-4311 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2013-4311 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4311?: CVE-2013-4311 primarily affects Redhat Libvirt. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4311?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4311 published?: CVE-2013-4311 was published on 2013-10-03 and last updated on 2026-06-16.

References

Affected products (20)

cpe:2.3:a:redhat:libvirt:0.9.12:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:0.10.2:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:0.10.2.1:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:0.10.2.2:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:0.10.2.3:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:0.10.2.4:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:0.10.2.5:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:0.10.2.6:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:0.10.2.7:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:1.0.5.1:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:1.0.5.2:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:1.0.5.3:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:1.0.5.4:*:*:*:*:*:*:*
cpe:2.3:a:redhat:libvirt:1.0.5.5:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:10.04:-:lts:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*

More vulnerabilities in Redhat Libvirt

CVE-2016-5008 — Critical (CVSS 9.8): libvirt before 2.0.0 improperly disables password checking when the password on a VNC server is set to an empty string,…
CVE-2020-14339 — High (CVSS 8.8): A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process. This…
CVE-2019-10132 — High (CVSS 8.8): A vulnerability was found in libvirt >= 4.1.0 in the virtlockd-admin.socket and virtlogd-admin.socket systemd units. A…
CVE-2013-4401 — High (CVSS 8.5): The virConnectDomainXMLToNative API function in libvirt 1.1.0 through 1.1.3 checks for the connect:read permission…
CVE-2017-1000256 — High (CVSS 8.1): libvirt version 2.3.0 and later is vulnerable to a bad default configuration of "verify-peer=no" passed to QEMU by…
CVE-2019-10168 — High (CVSS 7.8): The virConnectBaselineHypervisorCPU() and virConnectCompareHypervisorCPU() libvirt APIs, 4.x.x before 4.10.1 and 5.x.x…

All CVEs affecting Redhat Libvirt →

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities

CVE-2016-8363 — Critical (CVSS 10.0): An issue was discovered in Moxa OnCell OnCellG3470A-LTE, AWK-1131A/3131A/4131A Series, AWK-3191 Series, AWK-5232/6232…
CVE-2016-7457 — Critical (CVSS 10.0): VMware vRealize Operations (aka vROps) 6.x before 6.4.0 allows remote authenticated users to gain privileges, or halt…
CVE-2015-7425 — Critical (CVSS 10.0): The Data Protection component in the VMware vSphere GUI in IBM Tivoli Storage Manager for Virtual Environments: Data…
CVE-2015-8267 — Critical (CVSS 10.0): The PasswordReset.Controllers.ResetController.ChangePasswordIndex method in PasswordReset.dll in Dovestones AD Self…
CVE-2015-7919 — Critical (CVSS 10.0): SearchBlox 8.3 before 8.3.1 allows remote attackers to write to the config file, and consequently cause a denial of…
CVE-2015-7071 — Critical (CVSS 10.0): The File Bookmark component in Apple OS X before 10.11.2 allows attackers to bypass a sandbox protection mechanism for…

Browse all CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities →