https://seclists.org/oss-sec/2026/q2/860: Xen Security Advisory 494 v3 (CVE-2026-42488) - x86: mismatched mapcache metadata
Published Jun 9, 2026
·Updated
Affected Software
1 affected component
Xen Project Xen>=4.15
Frequently Asked Questions
1
What is the severity of CVE-2026-42488?
CVE-2026-42488 has been classified with a high severity due to potential exploitation risks in Xen systems.
2
How do I fix CVE-2026-42488?
To fix CVE-2026-42488, users should apply the latest patches provided in the Xen Project updates.
3
What systems are affected by CVE-2026-42488?
CVE-2026-42488 primarily affects x86 architectures running the Xen Project hypervisor.
4
Can CVE-2026-42488 lead to data leakage?
Yes, successful exploitation of CVE-2026-42488 could potentially allow unauthorized access to sensitive data.
5
When was CVE-2026-42488 published?
CVE-2026-42488 was published on June 9, 2026, as part of Xen Security Advisory XSA-494.