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Vulnerability record · CVE-2009-3866 · published 5 November 2009

CVE-2009-3866: Sun jdk permissions and access controls vulnerability

Sun · Jdk

The Java Web Start Installer in Sun Java SE in JDK and JRE 6 before Update 17 does not properly use security model permissions when removing installer extensions, which allows remote attackers to execute arbitrary code by modifying a certain JNLP file to have a URL field that points to an unintended trusted application, aka Bug Id 6872824.

9.3 CVSS 2.0 High EPSS 6.2% · top 6.7% CWE-264 · Permissions and access controls
9.3CVSS 2.0 base score
6.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
38References
16 Jun 2026Last modified by NVD

Description

The Java Web Start Installer in Sun Java SE in JDK and JRE 6 before Update 17 does not properly use security model permissions when removing installer extensions, which allows remote attackers to execute arbitrary code by modifying a certain JNLP file to have a URL field that points to an unintended trusted application, aka Bug Id 6872824.

AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://java.sun.com/javase/6/webnotes/6u17.html Vendor Advisory
http://lists.apple.com/archives/security-announce/2009/Dec/msg00000.html
http://lists.apple.com/archives/security-announce/2009/Dec/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00010.html
http://marc.info/?l=bugtraq&m=134254866602253&w=2
http://secunia.com/advisories/37231 Vendor Advisory
http://secunia.com/advisories/37239
http://secunia.com/advisories/37386
http://secunia.com/advisories/37581
http://secunia.com/advisories/37841
http://security.gentoo.org/glsa/glsa-200911-02.xml
http://sunsolve.sun.com/search/document.do?assetkey=1-66-269870-1 PatchVendor Advisory
http://support.apple.com/kb/HT3969
http://support.apple.com/kb/HT3970
http://www.redhat.com/support/errata/RHSA-2009-1694.html
http://www.securityfocus.com/bid/36881
http://www.vupen.com/english/advisories/2009/3131 PatchVendor Advisory
http://zerodayinitiative.com/advisories/ZDI-09-077/ Patch
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6635
http://java.sun.com/javase/6/webnotes/6u17.html Vendor Advisory
http://lists.apple.com/archives/security-announce/2009/Dec/msg00000.html
http://lists.apple.com/archives/security-announce/2009/Dec/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00010.html
http://marc.info/?l=bugtraq&m=134254866602253&w=2
http://secunia.com/advisories/37231 Vendor Advisory
http://secunia.com/advisories/37239
http://secunia.com/advisories/37386
http://secunia.com/advisories/37581
http://secunia.com/advisories/37841
http://security.gentoo.org/glsa/glsa-200911-02.xml
http://sunsolve.sun.com/search/document.do?assetkey=1-66-269870-1 PatchVendor Advisory
http://support.apple.com/kb/HT3969
http://support.apple.com/kb/HT3970
http://www.redhat.com/support/errata/RHSA-2009-1694.html
http://www.securityfocus.com/bid/36881
http://www.vupen.com/english/advisories/2009/3131 PatchVendor Advisory
http://zerodayinitiative.com/advisories/ZDI-09-077/ Patch
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6635

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-3866), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.