How severe is CVE-2012-1601?

CVE-2012-1601 has a CVSS 2.0 base score of 4.9, rated medium severity.

Is CVE-2012-1601 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-1601?

CVE-2012-1601 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-1601?

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

When was CVE-2012-1601 published?

CVE-2012-1601 was published on 2012-05-17 and last updated on 2026-06-16.

CVE-2012-1601

CVE-2012-1601 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 4.9. 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

Severity: Medium (CVSS 2.0 base score 4.9)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Linux Linux Kernel
Published: 2012-05-17
Last modified: 2026-06-16

Description

The KVM implementation in the Linux kernel before 3.3.6 allows host OS users to cause a denial of service (NULL pointer dereference and host OS crash) by making a KVM_CREATE_IRQCHIP ioctl call after a virtual CPU already exists.

Frequently asked questions

What is CVE-2012-1601?: The KVM implementation in the Linux kernel before 3.3.6 allows host OS users to cause a denial of service (NULL pointer dereference and host OS crash) by making a KVM_CREATE_IRQCHIP ioctl call after a virtual CPU already exists.
How severe is CVE-2012-1601?: CVE-2012-1601 has a CVSS 2.0 base score of 4.9, rated medium severity.
Is CVE-2012-1601 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-1601?: CVE-2012-1601 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-1601?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-1601 published?: CVE-2012-1601 was published on 2012-05-17 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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