cve.bz

CVE-2021-43056

5.5 mediumEPSS 0.4%

Medium (5.5). EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.5 medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
0.4% chance of exploitation in the next 30 days; higher than 30% of CVEs (scores of 2026-10-31)
Published
Modified
Record from
the NVD, synced

Affected

References

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