CVE-2014-3690

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.17.2 on Intel processors does not ensure that the value in the CR4 control register remains the same after a VM entry, which allows host OS users to kill arbitrary processes or cause a denial of service (system disruption) by leveraging /dev/kvm access, as demonstrated by PR_SET_TSC prctl calls within a modified copy of QEMU.

Published: 2014-11-10 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-3690 is rated Low Risk (36.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.52%). 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-2014-3690

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 2026-06-15 0.02% 0.52% +0.49%
2 2025-03-30 0.10% 0.02% -0.08%
3 2025-03-29 — 0.10% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-3690

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]
4.9 2.0 MEDIUM
AV:L/AC:L/Au:N/C:N/I:N/A:C 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:C)
Complete availability impact.
 3.9 6.9 [email protected]

Weakness enumeration for CVE-2014-3690

OS Trackers for CVE-2014-3690

vendor priority summary link
debian not yet assigned CVE-2014-3690 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2014-3690
redhat medium — https://access.redhat.com/security/cve/CVE-2014-3690
ubuntu medium CVE-2014-3690 medium priority: Ubuntu including 102 source packages (linux, linux-armadaxp, …), 921 status rows across 16 suites (artful, bionic, focal, jammy, lucid, noble, plucky, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 626, not-affected 140, released 108, ignored 47. https://ubuntu.com/security/CVE-2014-3690

Affected software / configurations for CVE-2014-3690

Vendor Product Version Raw CPE
linux linux_kernel < 3.17.2 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
novell suse_linux_enterprise_desktop 12.0 cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:-:*:*:*:*:*:*
novell suse_linux_enterprise_server 11 cpe:2.3:o:novell:suse_linux_enterprise_server:11:sp2:*:*:ltss:*:*:*
novell suse_linux_enterprise_server 12.0 cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:-:*:*:*:*:*:*
opensuse evergreen 11.4 cpe:2.3:o:opensuse:evergreen:11.4:*:*:*:*:*:*:*
suse linux_enterprise_real_time_extension 11 cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp3:*:*:*:*:*:*
suse linux_enterprise_software_development_kit 12 cpe:2.3:o:suse:linux_enterprise_software_development_kit:12:-:*:*:*:*:*:*
suse linux_enterprise_workstation_extension 12 cpe:2.3:o:suse:linux_enterprise_workstation_extension:12:*:*:*:*:*:*:*
redhat enterprise_linux 5.0 cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 14.10 cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*

References for CVE-2014-3690

URL Tags
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d974baa398f34393db76be45f7d4d04fbdbb4a0a
http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html Mailing List Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-0290.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-0782.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-0864.html Third Party Advisory
http://secunia.com/advisories/60174 Broken Link
http://www.debian.org/security/2014/dsa-3060 Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.2 Mailing List Patch Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2015:058 Broken Link
http://www.openwall.com/lists/oss-security/2014/10/21/4 Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2014/10/29/7 Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/70691 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2417-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2418-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2419-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2420-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2421-1 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1153322 Issue Tracking Patch Third Party Advisory
https://github.com/torvalds/linux/commit/d974baa398f34393db76be45f7d4d04fbdbb4a0a Patch Third Party Advisory
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