How severe is CVE-2012-3371?

CVE-2012-3371 has a CVSS 2.0 base score of 3.5, rated low severity.

Is CVE-2012-3371 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3371?

CVE-2012-3371 primarily affects Openstack Compute. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-3371?

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

When was CVE-2012-3371 published?

CVE-2012-3371 was published on 2012-07-17 and last updated on 2026-06-16.

CVE-2012-3371

CVE-2012-3371 is a low-severity vulnerability in Openstack Compute with a CVSS 2.0 base score of 3.5. 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-20.

Key facts

Severity: Low (CVSS 2.0 base score 3.5)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Openstack Compute
Published: 2012-07-17
Last modified: 2026-06-16

Description

The Nova scheduler in OpenStack Compute (Nova) Folsom (2012.2) and Essex (2012.1), when DifferentHostFilter or SameHostFilter is enabled, allows remote authenticated users to cause a denial of service (excessive database lookup calls and server hang) via a request with many repeated IDs in the os:scheduler_hints section.

Frequently asked questions

What is CVE-2012-3371?: The Nova scheduler in OpenStack Compute (Nova) Folsom (2012.2) and Essex (2012.1), when DifferentHostFilter or SameHostFilter is enabled, allows remote authenticated users to cause a denial of service (excessive database lookup calls and server hang) via a request with many repeated IDs in the os:scheduler_hints section.
How severe is CVE-2012-3371?: CVE-2012-3371 has a CVSS 2.0 base score of 3.5, rated low severity.
Is CVE-2012-3371 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3371?: CVE-2012-3371 primarily affects Openstack Compute. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-3371?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-3371 published?: CVE-2012-3371 was published on 2012-07-17 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:openstack:compute:2012.2:*:*:*:*:*:*:*
cpe:2.3:a:openstack:essex:2012.1:*:*:*:*:*:*:*
cpe:2.3:a:openstack:folsom:2012.2:*:*:*:*:*:*:*

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