Is CVE-2009-3527 being actively exploited?

CVE-2009-3527 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-3527?

CVE-2009-3527 has a CVSS 2.0 base score of 6.9 (MEDIUM).

CVE-2009-3527

MEDIUM · CVSS 6.9EPSS 0.6%EU EUVD

Race condition in the Pipe (IPC) close function in FreeBSD 6.3 and 6.4 allows local users to cause a denial of service (crash) or gain privileges via vectors related to kqueues, which triggers a use after free, leading to a NULL pointer dereference or memory corruption.

Key facts

CVSS score: 6.9 (v2.0)
Severity: MEDIUM
CVSS vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-362
EPSS score: 0.6% (46th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-3509)
Published: October 6, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-3509 in the EU Vulnerability Database. Last updated in EUVD on September 17, 2024.

View on the EU Vulnerability Database

Affected products

freebsd / freebsd
freebsd / freebsd

References

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

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