CVE-2016-3712

Integer overflow in the VGA module in QEMU allows local guest OS users to cause a denial of service (out-of-bounds read and QEMU process crash) by editing VGA registers in VBE mode.

Published: 2016-05-11 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2016-3712 is rated Low Risk (31.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.12%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-3712

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-17 0.28% 0.12% -0.16%
2 2024-12-17 0.20% 0.28% +0.08%
3 2024-12-04 0.20%

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-3712

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
1.8 3.6 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
3.9 2.9 [email protected]

Weakness enumeration for CVE-2016-3712

OS Trackers for CVE-2016-3712

vendor priority summary link
debian not yet assigned CVE-2016-3712 not yet assigned priority: Debian including 2 source packages (qemu, xen), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2016-3712
redhat medium https://access.redhat.com/security/cve/CVE-2016-3712
suse low CVE-2016-3712 severity low: SUSE including 814 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 1117 product×package rows across 64 product lines (HPE Helion OpenStack 8, SUSE Liberty Linux 7, … (64 product lines)): Fixed 769, Known Affected 231, Known Not Affected 117. https://www.suse.com/security/cve/CVE-2016-3712/
ubuntu medium CVE-2016-3712 medium priority: Ubuntu including 2 source packages (qemu, qemu-kvm), 10 status rows across 5 suites (precise, trusty, upstream, wily, xenial): DNE 4, released 4, needs-triage 2. https://ubuntu.com/security/CVE-2016-3712

NVD evaluator notes for CVE-2016-3712

Comment: CWE-190: Integer Overflow or Wraparound

Affected software / configurations for CVE-2016-3712

Vendor Product Version Raw CPE
oracle vm_server 3.3 cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:x86:*
oracle vm_server 3.4 cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:x86:*
qemu qemu <= 2.5.1 cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
qemu qemu 2.6.0 cpe:2.3:a:qemu:qemu:2.6.0:rc0:*:*:*:*:*:*
qemu qemu 2.6.0 cpe:2.3:a:qemu:qemu:2.6.0:rc1:*:*:*:*:*:*
qemu qemu 2.6.0 cpe:2.3:a:qemu:qemu:2.6.0:rc2:*:*:*:*:*:*
qemu qemu 2.6.0 cpe:2.3:a:qemu:qemu:2.6.0:rc3:*:*:*:*:*:*
qemu qemu 2.6.0 cpe:2.3:a:qemu:qemu:2.6.0:rc4:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 15.10 cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 6.0 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 6.0 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.7 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.5 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.7 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.7:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.7 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 6.0 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
citrix xenserver <= 7.0 cpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*

References for CVE-2016-3712

URL Tags
http://rhn.redhat.com/errata/RHSA-2016-2585.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0621.html Third Party Advisory
http://support.citrix.com/article/CTX212736 Third Party Advisory
http://www.debian.org/security/2016/dsa-3573 Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/09/4 Mailing List Third Party Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html Third Party Advisory
http://www.securityfocus.com/bid/90314 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1035794 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2974-1 Third Party Advisory
http://xenbits.xen.org/xsa/advisory-179.html Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg01196.html Mailing List Patch Third Party Advisory
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