CVSS 3.0
8.4 highCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2016-4480
High (8.4). EPSS 0.5% chance of exploitation in the next 30 days.
The guest_walk_tables function in arch/x86/mm/guest_walk.c in Xen 4.6.x and earlier does not properly handle the Page Size (PS) page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-31)
- CWE
- CWE-264
- Published
- Modified
- Record from
- the NVD, synced
Affected
- oracle:vm_server
- xen:xen