Vulnerability Details : CVE-2022-42327

x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist between two guests.
Published 2022-11-01 13:15:12
Updated 2025-05-05 20:15:19
Source Xen Project
View at NVD,   CVE.org

Products affected by CVE-2022-42327

Exploit prediction scoring system (EPSS) score for CVE-2022-42327

EPSS FAQ
0.01%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 1 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-42327

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.1
 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
1.8
5.2
 134c704f-9b21-4f2e-91b3-4a467353bcc0 2025-05-05
7.1
 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
1.8
5.2
 NIST

CWE ids for CVE-2022-42327

  • The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
    Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

References for CVE-2022-42327

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