How severe is CVE-2013-0335?

CVE-2013-0335 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2013-0335 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-0335?

CVE-2013-0335 primarily affects Openstack Essex. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-0335?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2013-0335 published?

CVE-2013-0335 was published on 2013-03-22 and last updated on 2026-07-31.

CVE-2013-0335

CVE-2013-0335 is a high-severity vulnerability in Openstack Essex with a CVSS 3.x base score of 7.6. 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-613.

Key facts

Severity: High (CVSS 3.x base score 7.6)
CVSS v2: 6.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Openstack Essex
Published: 2013-03-22
Last modified: 2026-07-31

Description

OpenStack Compute (Nova) Grizzly, Folsom (2012.2), and Essex (2012.1) allows remote authenticated users to gain access to a VM in opportunistic circumstances by using the VNC token for a deleted VM that was bound to the same VNC port.

Frequently asked questions

What is CVE-2013-0335?: OpenStack Compute (Nova) Grizzly, Folsom (2012.2), and Essex (2012.1) allows remote authenticated users to gain access to a VM in opportunistic circumstances by using the VNC token for a deleted VM that was bound to the same VNC port.
How severe is CVE-2013-0335?: CVE-2013-0335 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2013-0335 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-0335?: CVE-2013-0335 primarily affects Openstack Essex. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-0335?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2013-0335 published?: CVE-2013-0335 was published on 2013-03-22 and last updated on 2026-07-31.

References

Affected products (6)

cpe:2.3:a:openstack:essex:2012.1:*:*:*:*:*:*:*
cpe:2.3:a:openstack:folsom:2012.2:*:*:*:*:*:*:*
cpe:2.3:a:openstack:grizzly:2012.2:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*

More vulnerabilities in Openstack Essex

CVE-2013-0261 — High (CVSS 8.8): A flaw was found in PackStack. A local user could exploit a symlink attack on a temporary file with a predictable name…
CVE-2013-0208 — Medium (CVSS 6.5): The boot-from-volume feature in OpenStack Compute (Nova) Folsom and Essex, when using nova-volumes, allows remote…
CVE-2013-0266 — Medium (CVSS 5.5): A flaw was found in the `puppetlabs-cinder` module, as used in PackStack. This vulnerability is due to incorrect file…
CVE-2012-5482 — Medium (CVSS 5.5): The v2 API in OpenStack Glance Grizzly, Folsom (2012.2), and Essex (2012.1) allows remote authenticated users to delete…
CVE-2012-4573 — Medium (CVSS 5.5): The v1 API in OpenStack Glance Grizzly, Folsom (2012.2), and Essex (2012.1) allows remote authenticated users to delete…
CVE-2012-3361 — Medium (CVSS 5.5): virt/disk/api.py in OpenStack Compute (Nova) Folsom (2012.2), Essex (2012.1), and Diablo (2011.3) allows remote…

All CVEs affecting Openstack Essex →

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