VULNERABILITY INTELLIGENCE

CVE-2016-6259

CVSS score6.2 MEDIUM
EPSS probability0.64%
CISA KEVNot currently listed
Published2016-08-02
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check.

Weakness classification

  • CWE-20: Improper Input Validation

Primary references