Vulnerability Details CVE-2016-1570
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 42.8%
CVSS Severity
CVSS v3 Score 8.5
CVSS v2 Score 6.9
Products affected by CVE-2016-1570
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cpe:2.3:o:xen:xen:4.1.6.1
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