CVE-2006-3468 Denial of service in n/a

What is CVE-2006-3468?

CVE-2006-3468 is a high-severity denial of service vulnerability in Linux kernel, published on 18 Jul 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Linux kernel 2.6.x, when using both NFS and EXT3, allows remote attackers to cause a denial of service (file system panic) via a crafted UDP packet with a V2 lookup procedure that specifies a bad file handle (inode number), which triggers an error and causes an exported directory to be remounted read-only.

Which versions are affected by CVE-2006-3468?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2006-3468?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2006-3468 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-3468 exists.

Public exploit code: 1 Exploit-DB entry.

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-qc66-pxrq-vq8r.