CVE-2012-6333

CVE-2012-6333 is a medium-severity vulnerability in Xen with a CVSS 2.0 base score of 4.7. 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-399.

Key facts

Description

Multiple HVM control operations in Xen 3.4 through 4.2 allow local HVM guest OS administrators to cause a denial of service (physical CPU consumption) via a large input.

Frequently asked questions

What is CVE-2012-6333?
Multiple HVM control operations in Xen 3.4 through 4.2 allow local HVM guest OS administrators to cause a denial of service (physical CPU consumption) via a large input.
How severe is CVE-2012-6333?
CVE-2012-6333 has a CVSS 2.0 base score of 4.7, rated medium severity.
Is CVE-2012-6333 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-2012-6333?
CVE-2012-6333 primarily affects Xen. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-6333?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-6333 published?
CVE-2012-6333 was published on 2012-12-13 and last updated on 2026-06-16.

References

Affected products (12)

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