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.
Conclusion & alert: CVE-2006-6013 is rated Low Risk (19.3/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.39%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.06% | 0.39% | +0.32% |
| 2 | 2024-01-17 | 0.04% | 0.06% | +0.02% |
| 3 | 2023-03-07 | — | 0.04% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2006-6013: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2006-6013 |
ubuntu
|
medium | CVE-2006-6013 medium priority: Ubuntu including 1 source packages (kfreebsd-5), 9 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): released 4, DNE 2, ignored 2, needs-triage 1. | https://ubuntu.com/security/CVE-2006-6013 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| dragonflybsd | dragonflybsd | — | cpe:2.3:o:dragonflybsd:dragonflybsd:*:*:*:*:*:*:*:* |
| freebsd | freebsd | 5.5 | cpe:2.3:o:freebsd:freebsd:5.5:*:*:*:*:*:*:* |
| midnightbsd | midnightbsd | 0.1-current | cpe:2.3:o:midnightbsd:midnightbsd:0.1-current:*:*:*:*:*:*:* |
| netbsd | netbsd | 2.0.4 | cpe:2.3:o:netbsd:netbsd:2.0.4:*:*:*:*:*:*:* |
| trustedbsd | trustedbsd | — | cpe:2.3:o:trustedbsd:trustedbsd:*:*:*:*:*:*:*:* |