CVE-2012-4536

CVE-2012-4536 is a low-severity vulnerability in Xen with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The (1) domain_pirq_to_emuirq and (2) physdev_unmap_pirq functions in Xen 2.2 allows local guest OS administrators to cause a denial of service (Xen crash) via a crafted pirq value that triggers an out-of-bounds read.

Frequently asked questions

What is CVE-2012-4536?
The (1) domain_pirq_to_emuirq and (2) physdev_unmap_pirq functions in Xen 2.2 allows local guest OS administrators to cause a denial of service (Xen crash) via a crafted pirq value that triggers an out-of-bounds read.
How severe is CVE-2012-4536?
CVE-2012-4536 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2012-4536 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4536?
CVE-2012-4536 affects Xen. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-4536?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-4536 published?
CVE-2012-4536 was published on 2012-11-21 and last updated on 2026-06-16.

References

Affected products (1)

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