CVE-2026-62430 (GCVE-0-2026-62430)
Vulnerability from cvelistv5
Published
2026-07-28 12:32
Modified
2026-07-28 16:33
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Accesses to the CMOS memory contents are done using an indirect IO port pair. Therefore Xen needs to cache the guest chosen index, and one of the usages of the index didn't take the necessary locking to avoid concurrent changes. As a result, a guest could change the index after it being checked, causing a subsequent out-of-bound read access to the contents of an array.
References
Impacted products
Vendor Product Version
Xen Xen Create a notification for this product.
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