CVE-2010-3861

What it is

The ethtool_get_rxnfc function in net/core/ethtool.c in the Linux kernel before 2.6.36 does not initialize a certain block of heap memory, which allows local users to obtain potentially sensitive information via an ETHTOOL_GRXCLSRLALL ethtool command with a large info.rule_cnt value, a different vulnerability than CVE-2010-2478.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. Limited direct impact.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2010-12-10 19:00 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:23 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.4% in the next 30 days (EPSS).
• Severity: 2.1 LOW (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2010-12-10 19:00 UTC

Last modified

2026-06-16 23:23 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-200 · Information exposure

Record status

Modified

Affected

• Linux Kernel < 2.6.36
• Opensuse 11.2
• Opensuse 11.3
• Suse Linux Enterprise Desktop 11
• Suse Linux Enterprise Real Time Extension 11
• Suse Linux Enterprise Server 11
• Canonical Ubuntu Linux 9.10
• Canonical Ubuntu Linux 10.04

Attack profile CVSS 2.0 · 2.1

Attack vector

Local

Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

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-2010-3861.md and follow it. Check whether this project is affected by CVE-2010-3861. 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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