CVE-2011-4087

Name: CVE-2011-4087
Creator: NVD / NIST
Published: 2013-06-08T13:05:55.21+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.67%

Last modified Jun 16, 2026

CVE-2011-4087 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The br_parse_ip_options function in net/bridge/br_netfilter.c in the Linux kernel before 2.6.39 does not properly initialize a certain data structure, which allows remote attackers to cause a denial of service by leveraging connectivity to a network interface that uses an Ethernet bridge device.. EPSS estimates a 2.67% chance of exploitation in the next 30 days.

Description

The br_parse_ip_options function in net/bridge/br_netfilter.c in the Linux kernel before 2.6.39 does not properly initialize a certain data structure, which allows remote attackers to cause a denial of service by leveraging connectivity to a network interface that uses an Ethernet bridge device.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

2.67%

83.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-665

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 2.6.39

References

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f8e9881c2aef1e982e5abc25c046820cd0b7cf64
http://www.openwall.com/lists/oss-security/2011/10/28/14Mailing List, Third Party Advisory
https://github.com/torvalds/linux/commit/f8e9881c2aef1e982e5abc25c046820cd0b7cf64Exploit, Patch, Third Party Advisory
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f8e9881c2aef1e982e5abc25c046820cd0b7cf64
http://www.openwall.com/lists/oss-security/2011/10/28/14Mailing List, Third Party Advisory
https://github.com/torvalds/linux/commit/f8e9881c2aef1e982e5abc25c046820cd0b7cf64Exploit, Patch, Third Party Advisory

Timeline

Published: Jun 8, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-4087?

How severe is CVE-2011-4087?

CVE-2011-4087 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.67% probability of exploitation in the next 30 days.

How do I fix CVE-2011-4087?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-4087?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST