How severe is CVE-2014-5148?

CVE-2014-5148 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2014-5148 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-2014-5148?

CVE-2014-5148 primarily affects Xen. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-5148?

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

When was CVE-2014-5148 published?

CVE-2014-5148 was published on 2014-10-26 and last updated on 2026-06-17.

CVE-2014-5148

CVE-2014-5148 is a medium-severity vulnerability in Xen with a CVSS 2.0 base score of 4.6. 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-119.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Xen
Published: 2014-10-26
Last modified: 2026-06-17

Description

Xen 4.4.x, when running on an ARM system and "handling an unknown system register access from 64-bit userspace," returns to an instruction of the trap handler for kernel space faults instead of an instruction that is associated with faults in 64-bit userspace, which allows local guest users to cause a denial of service (crash) and possibly gain privileges via a crafted process.

Frequently asked questions

What is CVE-2014-5148?: Xen 4.4.x, when running on an ARM system and "handling an unknown system register access from 64-bit userspace," returns to an instruction of the trap handler for kernel space faults instead of an instruction that is associated with faults in 64-bit userspace, which allows local guest users to cause a denial of service (crash) and possibly gain privileges via a crafted process.
How severe is CVE-2014-5148?: CVE-2014-5148 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2014-5148 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-2014-5148?: CVE-2014-5148 primarily affects Xen. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-5148?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-5148 published?: CVE-2014-5148 was published on 2014-10-26 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:xen:xen:4.4.1:*:*:*:*:*:x64:*
cpe:2.3:o:xen:xen:4.4.0:-:*:*:*:*:x64:*

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