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CVE-2014-4943

34
FAUCET Score

CVE-2014-4943 describes a local privilege escalation vulnerability in the PPPoL2TP feature of the Linux kernel (through version 3.15.6), affecting various distributions like Debian, Red Hat, and SUSE. This flaw, rated with a CVSS score of 6.9, allows a local attacker to gain full control of the system with medium attack complexity due to data-structure differences between socket types. While not listed in CISA's KEV catalog, a Proof-of-Concept exploit exists on ExploitDB, and it has seen some community discussion, though no active exploitation or media coverage has been reported.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.23, < 3.2.62CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.3, < 3.4.102CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.5, < 3.10.52CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.11, < 3.12.27CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.13, < 3.14.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.9MEDIUM

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.10%
Probability of exploitation in next 30 days
EPSS Percentile
79.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-36267 · Mar 4, 2015
This CVE's current EPSS score of 0.0210 is in the 96th percentile among its peer group of 1,595 CVEs.

Social Chatter

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 (5)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-431.20.5.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.2 Advanced Update SupportFixed in: kernel-0:2.6.32-220.54.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.4 Extended Update SupportFixed in: kernel-0:2.6.32-358.46.2.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-123.4.4.el7
View patch

Vendor Advisories (1)

redhatCVE-2014-4943Important

kernel: net: pppol2tp: level handling in pppol2tp_[s,g]etsockopt()

Jul 16, 2014

References

git.kernel.org
Broken LinkThird Party Advisory
linux.oracle.com / errata/ELSA-2014-0924.html
Third Party Advisory
linux.oracle.com / errata/ELSA-2014-3047.html
Third Party Advisory
linux.oracle.com / errata/ELSA-2014-3048.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-10/msg00006.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-10/msg00007.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-03/msg00010.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-03/msg00025.html
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2014/07/17/1
Mailing ListThird Party Advisory
osvdb.org / show/osvdb/109277
Broken Link
rhn.redhat.com / errata/RHSA-2014-1025.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
secunia.com / advisories/59790
Third Party Advisory
secunia.com / advisories/60011
Third Party Advisory
secunia.com / advisories/60071
Third Party Advisory
secunia.com / advisories/60220
Third Party Advisory
secunia.com / advisories/60380
Third Party Advisory
secunia.com / advisories/60393
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/94665
Third Party AdvisoryVDB Entry
github.com / torvalds/linux/commit/3cf521f7dc87c031617fd47e4b7aa2593c2f3daf
PatchThird Party Advisory
debian.org / security/2014/dsa-2992
Third Party Advisory
exploit-db.com / exploits/36267
Third Party AdvisoryVDB Entry
securitytracker.com / id/1030610
Third Party AdvisoryVDB Entry