VULNERABILITY INTELLIGENCE
CVE-2026-62430
CVSS score7.5 HIGH
EPSS probability0.24%
CISA KEVNot currently listed
Published2026-07-28
Last modified2026-07-28
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
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.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-362