How severe is CVE-2013-2256?

CVE-2013-2256 has a CVSS 2.0 base score of 6.0, rated medium severity.

Is CVE-2013-2256 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-2256?

CVE-2013-2256 primarily affects Openstack Nova. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-2256?

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

When was CVE-2013-2256 published?

CVE-2013-2256 was published on 2013-09-16 and last updated on 2026-06-16.

CVE-2013-2256

CVE-2013-2256 is a medium-severity vulnerability in Openstack Nova with a CVSS 2.0 base score of 6.0. 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 6.0)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Openstack Nova
Published: 2013-09-16
Last modified: 2026-06-16

Description

OpenStack Compute (Nova) before 2013.1.3 and Havana before havana-2 does not properly enforce the os-flavor-access:is_public property, which allows remote authenticated users to obtain sensitive information (flavor properties), boot arbitrary flavors, and possibly have other unspecified impacts by guessing the flavor id.

Frequently asked questions

What is CVE-2013-2256?: OpenStack Compute (Nova) before 2013.1.3 and Havana before havana-2 does not properly enforce the os-flavor-access:is_public property, which allows remote authenticated users to obtain sensitive information (flavor properties), boot arbitrary flavors, and possibly have other unspecified impacts by guessing the flavor id.
How severe is CVE-2013-2256?: CVE-2013-2256 has a CVSS 2.0 base score of 6.0, rated medium severity.
Is CVE-2013-2256 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-2256?: CVE-2013-2256 primarily affects Openstack Nova. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-2256?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-2256 published?: CVE-2013-2256 was published on 2013-09-16 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*
cpe:2.3:a:openstack:nova:2013.2:milestone1:*:*:*:*:*:*

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