VULNERABILITY INTELLIGENCE

CVE-2017-10917

CVSS score9.1 CRITICAL
EPSS probability2.57%
CISA KEVNot currently listed
Published2017-07-05
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Description

Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) or possibly obtain sensitive information, aka XSA-221.

Weakness classification

  • CWE-476: NULL Pointer Dereference

Primary references