VULNERABILITY INTELLIGENCE
CVE-2015-4163
CVSS score4.9 MEDIUM
EPSS probability0.44%
CISA KEVNot currently listed
Published2015-06-15
Last modified2026-06-17
CVSS vectorAV:L/AC:L/Au:N/C:N/I:N/A:C
Description
GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.