CVE-2021-43056

MEDIUM · CVSS 5.5 EPSS 0.34%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-28 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE

CVE-2021-43056

Severity

MEDIUM

CVSS

5.5

EPSS

0.34%

Linux

Original NVD Description

An issue was discovered in the Linux kernel for powerpc before 5.14.15. It allows a malicious KVM guest to crash the host, when the host is running on Power8, due to an arch/powerpc/kvm/book3s_hv_rmhandlers.S implementation bug in the handling of the SRR1 register values.