CVE-2015-7969: Xen

Medium severity, CVSS 4.9. EPSS: 0.4% chance of exploitation in the next 30 days.

Multiple memory leaks in Xen 4.0 through 4.6.x allow local guest administrators or domains with certain permission to cause a denial of service (memory consumption) via a large number of "teardowns" of domains with the vcpu pointer array allocated using the (1) XEN_DOMCTL_max_vcpus hypercall or the xenoprofile state vcpu pointer array allocated using the (2) XENOPROF_get_buffer or (3) XENOPROF_set_passive hypercall.

Affected products

• Xen Xen: version 4.0.0 only; version 4.0.1 only; version 4.0.2 only; version 4.0.3 only; version 4.0.4 only; version 4.1.0 only; …

Published 2015-10-30. Last modified 2026-06-17.