Is CVE-2009-3864 being actively exploited?

CVE-2009-3864 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-3864?

CVE-2009-3864 has a CVSS 2.0 base score of 7.5 (HIGH).

CVE-2009-3864

HIGH · CVSS 7.5EPSS 22.5%EU EUVD

The Java Update functionality in Java Runtime Environment (JRE) in Sun Java SE in JDK and JRE 5.0 before Update 22 and JDK and JRE 6 before Update 17, when a non-English version of Windows is used, does not retrieve available new JRE versions, which allows remote attackers to leverage vulnerabilities in older releases of this software, aka Bug Id 6869694.

Key facts

CVSS score: 7.5 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS score: 22.5% (98th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-3835)
Published: November 5, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-3835 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / windows
sun / jdk
sun / jdk
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sun / jdk
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sun / jre
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sun / jre

and 28 more…

References

http://java.sun.com/javase/6/webnotes/6u17.html
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00010.html
http://secunia.com/advisories/37231(Vendor Advisory)
http://secunia.com/advisories/37239
http://sunsolve.sun.com/search/document.do?assetkey=1-66-269868-1(Patch, Vendor Advisory)
http://www.securityfocus.com/bid/36881(Patch)
http://www.vupen.com/english/advisories/2009/3131(Patch, Vendor Advisory)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6753

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

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