CVE-2009-2671

CVE-2009-2671 is a medium-severity vulnerability in Sun Jdk with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 4% (90th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Sun Jdk
• Published: 2009-08-05
• Last modified: 2026-06-16

Description

The SOCKS proxy implementation in Sun Java Runtime Environment (JRE) in JDK and JRE 6 before Update 15, and JDK and JRE 5.0 before Update 20, allows remote attackers to discover the username of the account that invoked an untrusted (1) applet or (2) Java Web Start application via unspecified vectors.

Frequently asked questions

What is CVE-2009-2671?

The SOCKS proxy implementation in Sun Java Runtime Environment (JRE) in JDK and JRE 6 before Update 15, and JDK and JRE 5.0 before Update 20, allows remote attackers to discover the username of the account that invoked an untrusted (1) applet or (2) Java Web Start application via unspecified vectors.

How severe is CVE-2009-2671?

CVE-2009-2671 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-2671 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2671?

CVE-2009-2671 primarily affects Sun Jdk. In total, 61 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2671?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-2671 published?

CVE-2009-2671 was published on 2009-08-05 and last updated on 2026-06-16.

References

• http://java.sun.com/j2se/1.5.0/ReleaseNotes.html#150_20
• http://java.sun.com/javase/6/webnotes/6u15.html
• http://lists.apple.com/archives/security-announce/2009/Sep/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2009-08/msg00003.html
• http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00002.html
• http://marc.info/?l=bugtraq&m=125787273209737&w=2
• http://secunia.com/advisories/36162
• http://secunia.com/advisories/36176
• http://secunia.com/advisories/36180
• http://secunia.com/advisories/36199
• http://secunia.com/advisories/36248
• http://secunia.com/advisories/37300
• http://secunia.com/advisories/37386
• http://secunia.com/advisories/37460
• http://security.gentoo.org/glsa/glsa-200911-02.xml
• http://sunsolve.sun.com/search/document.do?assetkey=1-21-125136-16-1
• http://sunsolve.sun.com/search/document.do?assetkey=1-66-263409-1
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:209
• http://www.oracle.com/technetwork/topics/security/cpuoct2009-096303.html
• http://www.securityfocus.com/archive/1/507985/100/0/threaded
• http://www.securityfocus.com/bid/35943
• http://www.securitytracker.com/id?1022659
• http://www.us-cert.gov/cas/techalerts/TA09-294A.html
• http://www.vmware.com/security/advisories/VMSA-2009-0016.html
• http://www.vupen.com/english/advisories/2009/2543
• http://www.vupen.com/english/advisories/2009/3316
• https://exchange.xforce.ibmcloud.com/vulnerabilities/52336
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11115
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8259

Affected products (61)

• cpe:2.3:a:sun:jdk:*:update_13:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_1:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_10:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_11:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_12:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_13:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_14:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_15:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_16:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_17:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_2:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_3:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_4:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_5:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_6:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_7:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_8:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:5.0:update_9:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_1:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_10:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_11:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_12:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_2:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_3:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_4:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_5:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_6:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_7:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_8:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:6:update_9:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:*:update_13:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:5.0:update_1:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:5.0:update_10:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:5.0:update_11:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:5.0:update_12:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:5.0:update_13:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:5.0:update_14:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:5.0:update_15:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:5.0:update_16:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:5.0:update_17:*:*:*:*:*:*

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