CVE-2006-2446

5.4 MEDIUM 3% exploit odds Fix listed

What it is

Race condition between the kfree_skb and __skb_unlink functions in the socket buffer handling in Linux kernel 2.6.9, and possibly other versions, allows remote attackers to cause a denial of service (crash), as demonstrated using the TCP stress tests from the LTP test suite.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 3.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2006-08-15 22:04 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 22:25 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.4% in the next 30 days (EPSS).
Severity: 5.4 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2006-08-15 22:04 UTC
Last modified: 2026-06-16 22:25 UTC
Exploit probability: 3.4% · EPSS, next 30 days
Record status: Modified

Affected

Linux Kernel 2.6.9

Attack profile CVSS 2.0 · 5.4

Attack vector: Network
Complexity: High
Authentication: None
Confidentiality: None
Integrity: None
Availability: Complete

Raw vector

AV:N/AC:H/Au:N/C:N/I:N/A:C

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2006-2446.md and follow it. Check whether this project is affected by CVE-2006-2446. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record