Is CVE-2006-4516 being actively exploited?

CVE-2006-4516 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2006-4516?

CVE-2006-4516 has a CVSS 2.0 base score of 4.9 (MEDIUM).

CVE-2006-4516

MEDIUM · CVSS 4.9EPSS 0.8%EU EUVD

Integer signedness error in FreeBSD 6.0-RELEASE allows local users to cause a denial of service (memory corruption and kernel panic) via a PT_LWPINFO ptrace command with a large negative data value that satisfies a signed maximum value check but is used in an unsigned copyout function call.

Key facts

CVSS score: 4.9 (v2.0)
Severity: MEDIUM
CVSS vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
EPSS score: 0.8% (57th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2006-4504)
Published: October 12, 2006
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2006-4504 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

freebsd / freebsd

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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