VULNERABILITY INTELLIGENCE
CVE-2013-4361
CVSS score2.1 LOW
EPSS probability0.40%
CISA KEVNot currently listed
Published2013-10-01
Last modified2026-06-16
CVSS vectorAV:L/AC:L/Au:N/C:P/I:N/A:N
Description
The fbld instruction emulation in Xen 3.3.x through 4.3.x does not use the correct variable for the source effective address, which allows local HVM guests to obtain hypervisor stack information by reading the values used by the instruction.
Weakness classification
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor