How severe is CVE-2013-4370?

CVE-2013-4370 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2013-4370 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4370?

CVE-2013-4370 primarily affects Xen. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4370?

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

When was CVE-2013-4370 published?

CVE-2013-4370 was published on 2013-10-17 and last updated on 2026-06-16.

CVE-2013-4370

CVE-2013-4370 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% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Xen
Published: 2013-10-17
Last modified: 2026-06-16

Description

The ocaml binding for the xc_vcpu_getaffinity function in Xen 4.2.x and 4.3.x frees certain memory that may still be intended for use, which allows local users to cause a denial of service (heap corruption and crash) and possibly execute arbitrary code via unspecified vectors that trigger a (1) use-after-free or (2) double free.

Frequently asked questions

What is CVE-2013-4370?: The ocaml binding for the xc_vcpu_getaffinity function in Xen 4.2.x and 4.3.x frees certain memory that may still be intended for use, which allows local users to cause a denial of service (heap corruption and crash) and possibly execute arbitrary code via unspecified vectors that trigger a (1) use-after-free or (2) double free.
How severe is CVE-2013-4370?: CVE-2013-4370 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2013-4370 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4370?: CVE-2013-4370 primarily affects Xen. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4370?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4370 published?: CVE-2013-4370 was published on 2013-10-17 and last updated on 2026-06-16.

References

Affected products (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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