No exploitation reportedFix available

CVE-2011-4112

No exploitation reported by the sources we read.

Published2012-05-17

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The net subsystem in the Linux kernel before 3.1 does not properly restrict use of the IFF_TX_SKB_SHARING flag, which allows local users to cause a denial of service (panic) by leveraging the CAP_NET_ADMIN capability to access /proc/net/pktgen/pgctrl, and then using the pktgen package in conjunction with a bridge device for a VLAN interface.

Timeline

dates in UTC

2012-05-1711:00CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2011-4112?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2011-4112?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Avaya 9608 firmwareversion to verify

Branch	Affected	Fixed in	Source
6.x	≥ 6.0, ≤ 6.6.0	no fix published	NVD

Avaya 9608g firmwareversion to verify

Branch	Affected	Fixed in	Source
6.x	≥ 6.0, ≤ 6.6.0	no fix published	NVD

Avaya 9611g firmwareversion to verify

Branch	Affected	Fixed in	Source
6.x	≥ 6.0, ≤ 6.6.0	no fix published	NVD

4 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

www.kernel.orgPatch · Vendor Advisory
www.openwall.comPatch
bugzilla.redhat.comPatch
github.comPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.15.5read 2026-10-23
NVDCVSS 2.04.9read 2026-10-23
FIRST EPSSEPSS score0.5 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published: 2012-05-17
Last Modified: 2026-06-16
NVD status: Modified

Frequently asked questions

What is CVE-2011-4112?

Is CVE-2011-4112 actively exploited?

Active exploitation of CVE-2011-4112 has not been confirmed. Its EPSS score was 0.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2011-4112?

CVE-2011-4112 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

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