CVE-2016-1571

6.3 mediumEPSS 1.3%

Medium (6.3). EPSS 1.3% chance of exploitation in the next 30 days.

The paging_invlpg function in include/asm-x86/paging.h in Xen 3.3.x through 4.6.x, when using shadow mode paging or nested virtualization is enabled, allows local HVM guest users to cause a denial of service (host crash) via a non-canonical guest address in an INVVPID instruction, which triggers a hypervisor bug check.

Severity

CVSS 3.0

6.3 medium

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
CWE: CWE-17
Published: 2016-01-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

citrix:xenserver
xen:xen

References

http://support.citrix.com/article/CTX205496
http://www.debian.org/security/2016/dsa-3519
http://www.securitytracker.com/id/1034745
http://xenbits.xen.org/xsa/advisory-168.html
http://support.citrix.com/article/CTX205496

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