How severe is CVE-2007-3720?

CVE-2007-3720 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-2007-3720 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-3720?

CVE-2007-3720 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-3720?

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

When was CVE-2007-3720 published?

CVE-2007-3720 was published on 2007-07-12 and last updated on 2026-06-16.

CVE-2007-3720

CVE-2007-3720 is a low-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 2.0 base score 2.1)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Linux Linux Kernel
Published: 2007-07-12
Last modified: 2026-06-16

Description

The process scheduler in the Linux kernel 2.4 performs scheduling based on CPU billing gathered from periodic process sampling ticks, which allows local users to cause a denial of service (CPU consumption) by performing voluntary nanosecond sleeps that result in the process not being active during a clock interrupt, as described in "Secretly Monopolizing the CPU Without Superuser Privileges."

Frequently asked questions

What is CVE-2007-3720?: The process scheduler in the Linux kernel 2.4 performs scheduling based on CPU billing gathered from periodic process sampling ticks, which allows local users to cause a denial of service (CPU consumption) by performing voluntary nanosecond sleeps that result in the process not being active during a clock interrupt, as described in "Secretly Monopolizing the CPU Without Superuser Privileges."
How severe is CVE-2007-3720?: CVE-2007-3720 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2007-3720 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3720?: CVE-2007-3720 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-3720?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-3720 published?: CVE-2007-3720 was published on 2007-07-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:2.4.0:*:*:*:*:*:*:*

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