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CVE-2014-3940

13
FAUCET Score

CVE-2014-3940 is a denial-of-service vulnerability in the Linux kernel, affecting versions up to 3.14.5, including various Red Hat Enterprise Linux products. It stems from improper handling of hugetlb entries, allowing local users to trigger a race condition during hugepage migration via numa_maps read operations. This vulnerability has a CVSS score of 4.0, indicating a low attack complexity but a high potential for a system crash or memory corruption. There is no known active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*
<= 3.14.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.14:-:*:*:*:*:*:*
3.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.14:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

AV:L/AC:H/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
1.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.27%
Probability of exploitation in next 30 days
EPSS Percentile
19.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0027 is in the 10th percentile among its peer group of 1,595 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-573.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-229.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:3.10.33-rt32.43.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2014-3940Moderate

Kernel: missing check during hugepage migration

Mar 18, 2014

References

rhn.redhat.com / errata/RHSA-2015-0290.html
rhn.redhat.com / errata/RHSA-2015-1272.html
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/59011
secunia.com / advisories/61310
lkml.org / lkml/2014/3/18/784
support.f5.com / kb/en-us/solutions/public/15000/600/sol15685.html
openwall.com / lists/oss-security/2014/06/02/5
securityfocus.com / bid/67786