CVE-2006-0039

4.7 MEDIUM 0.3% exploit odds Fix listed

What it is

Race condition in the do_add_counters function in netfilter for Linux kernel 2.6.16 allows local users with CAP_NET_ADMIN capabilities to read kernel memory by triggering the race condition in a way that produces a size value that is inconsistent with allocated memory, which leads to a buffer over-read in IPT_ENTRY_ITERATE.

At a glance

Exploitability: Can be exploited locally on the machine without logging in. High risk of service disruption.
Exploit odds: 0.3% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2006-05-19 22:02 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 22:19 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.3% in the next 30 days (EPSS).
Severity: 4.7 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2006-05-19 22:02 UTC
Last modified: 2026-06-16 22:19 UTC
Exploit probability: 0.3% · EPSS, next 30 days
Weakness: CWE-362 · Race condition
Record status: Modified

Affected

Linux Kernel 2.6.16

Attack profile CVSS 2.0 · 4.7

Attack vector: Local
Complexity: High
Authentication: None
Confidentiality: Partial
Integrity: None
Availability: Complete

Raw vector

AV:L/AC:H/Au:N/C:P/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-2006-0039.md and follow it. Check whether this project is affected by CVE-2006-0039. 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