How severe is CVE-2014-0155?

CVE-2014-0155 has a CVSS 2.0 base score of 5.5, rated medium severity.

Is CVE-2014-0155 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-0155?

CVE-2014-0155 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-0155?

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

When was CVE-2014-0155 published?

CVE-2014-0155 was published on 2014-04-14 and last updated on 2026-06-17.

CVE-2014-0155

CVE-2014-0155 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 5.5. 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: Medium (CVSS 2.0 base score 5.5)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Linux Linux Kernel
Published: 2014-04-14
Last modified: 2026-06-17

Description

The ioapic_deliver function in virt/kvm/ioapic.c in the Linux kernel through 3.14.1 does not properly validate the kvm_irq_delivery_to_apic return value, which allows guest OS users to cause a denial of service (host OS crash) via a crafted entry in the redirection table of an I/O APIC. NOTE: the affected code was moved to the ioapic_service function before the vulnerability was announced.

Frequently asked questions

What is CVE-2014-0155?: The ioapic_deliver function in virt/kvm/ioapic.c in the Linux kernel through 3.14.1 does not properly validate the kvm_irq_delivery_to_apic return value, which allows guest OS users to cause a denial of service (host OS crash) via a crafted entry in the redirection table of an I/O APIC. NOTE: the affected code was moved to the ioapic_service function before the vulnerability was announced.
How severe is CVE-2014-0155?: CVE-2014-0155 has a CVSS 2.0 base score of 5.5, rated medium severity.
Is CVE-2014-0155 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-0155?: CVE-2014-0155 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2014-0155?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-0155 published?: CVE-2014-0155 was published on 2014-04-14 and last updated on 2026-06-17.

References

Affected products (1)

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

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