How severe is CVE-2013-1442?

CVE-2013-1442 has a CVSS 2.0 base score of 1.2, rated low severity.

Is CVE-2013-1442 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-1442?

CVE-2013-1442 primarily affects Xen. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-1442?

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

When was CVE-2013-1442 published?

CVE-2013-1442 was published on 2013-09-30 and last updated on 2026-06-16.

CVE-2013-1442

CVE-2013-1442 is a low-severity vulnerability in Xen with a CVSS 2.0 base score of 1.2. 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-200.

Key facts

Severity: Low (CVSS 2.0 base score 1.2)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Xen
Published: 2013-09-30
Last modified: 2026-06-16

Description

Xen 4.0 through 4.3.x, when using AVX or LWP capable CPUs, does not properly clear previous data from registers when using an XSAVE or XRSTOR to extend the state components of a saved or restored vCPU after touching other restored extended registers, which allows local guest OSes to obtain sensitive information by reading the registers.

Frequently asked questions

What is CVE-2013-1442?: Xen 4.0 through 4.3.x, when using AVX or LWP capable CPUs, does not properly clear previous data from registers when using an XSAVE or XRSTOR to extend the state components of a saved or restored vCPU after touching other restored extended registers, which allows local guest OSes to obtain sensitive information by reading the registers.
How severe is CVE-2013-1442?: CVE-2013-1442 has a CVSS 2.0 base score of 1.2, rated low severity.
Is CVE-2013-1442 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-1442?: CVE-2013-1442 primarily affects Xen. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-1442?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-1442 published?: CVE-2013-1442 was published on 2013-09-30 and last updated on 2026-06-16.

References

Affected products (16)

cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.4:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.5:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*

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