CVE-2026-62431: Xen

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

The logic to handle periodic Viridian STIMERs performs a division with an unchecked user-controlled divisor value, that can be set to zero to cause a #DE fault.

Affected products

• Xen Xen

Published 2026-07-28. Last modified 2026-07-28.