AUGUST 4, 2026
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Case File

CVE-2021-4032

MEDIUM · CVSS 4.4 EPSS 0.39%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-01-21 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.4. It affects Linux. It may lead to a denial-of-service condition.

CVE
CVE-2021-4032
Severity
MEDIUM
CVSS
4.4
EPSS
0.39%
Linux

Original NVD Description

A vulnerability was found in the Linux kernel's KVM subsystem in arch/x86/kvm/lapic.c kvm_free_lapic when a failure allocation was detected. In this flaw the KVM subsystem may crash the kernel due to mishandling of memory errors that happens during VCPU construction, which allows an attacker with special user privilege to cause a denial of service. This flaw affects kernel versions prior to 5.15 rc7.

Related CVEs

Other vulnerabilities affecting the same vendor(s)