CVE-2020-27152

Name: CVE-2020-27152
Creator: NVD / NIST
Published: 2020-11-06T08:15:13.673+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2020-27152 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue was discovered in ioapic_lazy_update_eoi in arch/x86/kvm/ioapic.c in the Linux kernel before 5.9.2. It has an infinite loop related to improper interaction between a resampler and edge triggering, aka CID-77377064c3a9.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

An issue was discovered in ioapic_lazy_update_eoi in arch/x86/kvm/ioapic.c in the Linux kernel before 5.9.2. It has an infinite loop related to improper interaction between a resampler and edge triggering, aka CID-77377064c3a9.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.56%

42.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-835

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 5.9.2

References

http://www.openwall.com/lists/oss-security/2020/11/03/1Mailing List, Patch, Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=208767Exploit, Issue Tracking, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.2Mailing List, Release Notes, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=77377064c3a94911339f13ce113b3abf265e06daMailing List, Patch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2020/11/03/1Mailing List, Patch, Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=208767Exploit, Issue Tracking, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.2Mailing List, Release Notes, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=77377064c3a94911339f13ce113b3abf265e06daMailing List, Patch, Vendor Advisory

Timeline

Published: Nov 6, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27152?

How severe is CVE-2020-27152?

CVE-2020-27152 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27152?

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-2020-27152?

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

Scan your code now

Source: NVD / NIST