CVE-2011-0709 Null dereference in n/a

What is CVE-2011-0709?

CVE-2011-0709 is a high-severity vulnerability in Linux kernel, published on 18 Feb 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The br_mdb_ip_get function in net/bridge/br_multicast.c in the Linux kernel before 2.6.35-rc5 allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via an IGMP packet, related to lack of a multicast table.

Weakness: CWE-476

Which versions are affected by CVE-2011-0709?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2011-0709?

No fix has been published for CVE-2011-0709 yet. Limit exposure of the affected software until one is available.

Is CVE-2011-0709 being exploited?

There is no known exploitation of CVE-2011-0709 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-xg76-3pjj-pf64.