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CVE-2013-4270

13
FAUCET Score

CVE-2013-4270 is a local privilege escalation vulnerability affecting the Linux kernel before version 3.11.5. It stems from improper uid and gid value determination in the net_ctl_permissions function, allowing local users to bypass /proc/sys/net restrictions. With a CVSS score of 3.6 (low severity), it requires local access and has a low attack complexity, potentially leading to information disclosure and partial integrity compromise. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.11.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.6LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.55%
Probability of exploitation in next 30 days
EPSS Percentile
42.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0055 is in the 79th percentile among its peer group of 2,096 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 0.6 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)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:3.8.13-rt27.33.el6rt
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel

Vendor Advisories (1)

redhatCVE-2013-4270Moderate

kernel: net: permissions flaw in /proc/sys/net

Oct 6, 2013

References

git.kernel.org
rhn.redhat.com / errata/RHSA-2014-0100.html
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/2433c8f094a008895e66f25bd1773cdb01c91d01
ExploitPatch
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.11.5
ubuntu.com / usn/USN-2049-1