VULNERABILITY INTELLIGENCE

CVE-2016-9379

CVSS score7.9 HIGH

EPSS probability0.44%

CISA KEVNot currently listed

Published2017-01-23

Last modified2026-06-17

Description

The pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via string quotes and S-expressions in the bootloader configuration file.