6.3 Medium
AI Score
Confidence
Low
6.5 Medium
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
HIGH
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:A/AC:H/Au:S/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
26.4%
The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled, provides access to a busmastering-capable PCI passthrough device before the IOMMU setup is complete, which allows local HVM guest domains to gain privileges or cause a denial of service via a DMA instruction.