CVE-2006-6013

What it is

Integer signedness error in the fw_ioctl (FW_IOCTL) function in the FireWire (IEEE-1394) drivers (dev/firewire/fwdev.c) in various BSD kernels, including DragonFlyBSD, FreeBSD 5.5, MidnightBSD 0.1-CURRENT before 20061115, NetBSD-current before 20061116, NetBSD-4 before 20061203, and TrustedBSD, allows local users to read arbitrary memory contents via certain negative values of crom_buf->len in an FW_GCROM command. NOTE: this issue has been labeled as an integer overflow, but it is more like an integer signedness error.

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. 2006-11-21 23:07 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:32 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

2006-11-21 23:07 UTC

Last modified

2026-06-16 22:32 UTC

Exploit probability

0.4% · EPSS, next 30 days

Record status

Modified

Affected

• Dragonflybsd
• Freebsd 5.5
• Midnightbsd 0.1-current
• Netbsd 2.0.4
• Trustedbsd

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-2006-6013.md and follow it. Check whether this project is affected by CVE-2006-6013. 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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