Is CVE-2009-3739 being actively exploited?

CVE-2009-3739 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-3739?

CVE-2009-3739 has a CVSS 2.0 base score of 10.0 (HIGH).

CVE-2009-3739

HIGH · CVSS 10.0EPSS 5.9%EU EUVD

Multiple unspecified vulnerabilities on the Rockwell Automation AB Micrologix 1100 and 1400 controllers allow remote attackers to obtain privileged access or cause a denial of service (halt) via unknown vectors.

Key facts

CVSS score: 10.0 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS score: 5.9% (93th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-3711)
Published: January 19, 2010
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-3711 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

rockwellautomation / ab micrologix controller 1100
rockwellautomation / ab micrologix controller 1400

References

http://www.securityfocus.com/archive/1/508946/100/0/threaded

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

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