CVE-2016-3710

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-05-11 · updated 2026-06-17
Weakness: CWE-119

Description

The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arbitrary code on the host by changing access modes after setting the bank register, aka the "Dark Portal" issue.

Affected products

Canonical Ubuntu Linux: 12.04, 14.04, 15.10, 16.04
Citrix XenServer: through 7.0
Debian Linux: 8.0
HP Helion Openstack: 2.0.0, 2.1.0, 2.1.2, 2.1.4
Oracle Corporation Oracle Linux: 5, 6, 7
Oracle Vm Server: 3.2, 3.3, 3.4
QEMU: through 2.5.1; 2.6.0-rc0, 2.6.0-rc1, 2.6.0-rc2, 2.6.0-rc3, 2.6.0-rc4
RedHat Enterprise Linux Desktop: 6.0, 7.0
RedHat Enterprise Linux Server: 6.0, 7.0
RedHat Enterprise Linux Server Aus: 7.2, 7.3, 7.4, 7.6
RedHat Enterprise Linux Server Eus: 7.2, 7.3, 7.4, 7.5, 7.6, 7.7
RedHat Enterprise Linux Server Tus: 7.2, 7.3, 7.6, 7.7
RedHat Enterprise Linux Workstation: 6.0, 7.0
OpenStack: 5.0, 6.0, 7.0, 8
RedHat Virtualization: 3.0

References

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