CVE-2009-3866

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-11-05 · updated 2026-06-16
Weakness: CWE-264

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.

Affected products

Sun Jdk: 1.6.0-update_1, 1.6.0-update_10, 1.6.0-update_11, 1.6.0-update_12, 1.6.0-update_13, 1.6.0-update_14 (+9)
Sun Jre: 1.6.0-update_1, 1.6.0-update_10, 1.6.0-update_11, 1.6.0-update_12, 1.6.0-update_13, 1.6.0-update_14 (+10)

References

http://java.sun.com/javase/6/webnotes/6u17.html
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
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

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