VULNERABILITY INTELLIGENCE
CVE-2016-1570
CVSS score8.5 HIGH
EPSS probability1.15%
CISA KEVNot currently listed
Published2016-01-22
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Description
The PV superpage functionality in arch/x86/mm.c in Xen 3.4.0, 3.4.1, and 4.1.x through 4.6.x allows local PV guests to obtain sensitive information, cause a denial of service, gain privileges, or have unspecified other impact via a crafted page identifier (MFN) to the (1) MMUEXT_MARK_SUPER or (2) MMUEXT_UNMARK_SUPER sub-op in the HYPERVISOR_mmuext_op hypercall or (3) unknown vectors related to page table updates.
Weakness classification
- CWE-20: Improper Input Validation