CVE-2016-1570
moderate-risk
Published 2016-01-22
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.
Do I need to act?
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0.20% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.5/10
High
NETWORK
/ HIGH complexity
Affected Products (20)
Affected Vendors
References (6)
48
/ 100
moderate-risk
Severity
25/34 · High
Exploitability
1/34 · Minimal
Exposure
22/34 · High