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CVE-2015-3290

HighPublished

arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform improperly relies on espfix64 during nested NMI processing, which allows...

Published: Aug 31, 2015
Updated: Aug 6, 2024
Assigning CNA: redhat
Evidence observed: Aug 5, 2015

Primary CVSS

7.2/ 10High

nvd · CVSS 2.0

AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS probability estimate

1.1%

Low · next 30 days

Percentile: 63.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform improperly relies on espfix64 during nested NMI processing, which allows local users to gain privileges by triggering an NMI within a certain instruction window.

Sources

Linux Kernel - 'espfix64' Nested NMIs Interrupting Privilege EscalationExploit
Andrew Lutomirski · linux_x86-64 · Aug 5, 2015

Responsible use

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