CVE-2015-7970

Name: CVE-2015-7970
Creator: NVD / NIST
Published: 2015-10-30T15:59:06.967+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.44%

Last modified Jun 17, 2026

CVE-2015-7970 is a vulnerability of currently unknown severity. The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consumption and possibly reboot) via crafted memory contents that triggers a "time-consuming linear scan," related to Populate-on-Demand.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consumption and possibly reboot) via crafted memory contents that triggers a "time-consuming linear scan," related to Populate-on-Demand.

Metrics

EPSS Probability

0.44%

34.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Xen	Xen	3.4.0
Xen	Xen	3.4.1
Xen	Xen	3.4.2
Xen	Xen	3.4.3
Xen	Xen	3.4.4

References

Timeline

Published: Oct 30, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-7970?

How severe is CVE-2015-7970?

Severity scoring for CVE-2015-7970 is pending analysis. The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2015-7970?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-7970?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST