CVE-2009-3876

CVE-2009-3876 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. The underlying weakness is classified as CWE-399.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 3% (87th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-399
• Affected product: Sun Jdk
• Published: 2009-11-05
• Last modified: 2026-06-16

Description

Unspecified vulnerability in Sun Java SE in JDK and JRE 5.0 before Update 22, JDK and JRE 6 before Update 17, SDK and JRE 1.3.x before 1.3.1_27, and SDK and JRE 1.4.x before 1.4.2_24 allows remote attackers to cause a denial of service (memory consumption) via crafted DER encoded data, which is not properly decoded by the ASN.1 DER input stream parser, aka Bug Id 6864911.

Frequently asked questions

What is CVE-2009-3876?

Unspecified vulnerability in Sun Java SE in JDK and JRE 5.0 before Update 22, JDK and JRE 6 before Update 17, SDK and JRE 1.3.x before 1.3.1_27, and SDK and JRE 1.4.x before 1.4.2_24 allows remote attackers to cause a denial of service (memory consumption) via crafted DER encoded data, which is not properly decoded by the ASN.1 DER input stream parser, aka Bug Id 6864911.

How severe is CVE-2009-3876?

CVE-2009-3876 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-3876 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3876?

CVE-2009-3876 primarily affects Sun Jdk. In total, 208 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-3876?

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

When was CVE-2009-3876 published?

CVE-2009-3876 was published on 2009-11-05 and last updated on 2026-06-16.

References

• http://java.sun.com/javase/6/webnotes/6u17.html
• http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00010.html
• http://marc.info/?l=bugtraq&m=126566824131534&w=2
• http://marc.info/?l=bugtraq&m=131593453929393&w=2
• 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/37841
• http://security.gentoo.org/glsa/glsa-200911-02.xml
• http://sunsolve.sun.com/search/document.do?assetkey=1-66-270476-1
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:084
• http://www.oracle.com/technetwork/topics/security/cpujan2010-084891.html
• http://www.redhat.com/support/errata/RHSA-2009-1694.html
• http://www.securityfocus.com/bid/36881
• http://www.vupen.com/english/advisories/2009/3131
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10328
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11934
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6805
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8608

Affected products (208)

• cpe:2.3:a:sun:jdk:1.5.0:update1:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update10:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update11:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update11_b03:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update12:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update13:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update14:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update15:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update16:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update17:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update18:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update19:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update2:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update20:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update21:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update3:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update4:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update5:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update6:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update7:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update7_b03:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update8:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.5.0:update9:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update1:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update10:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update11:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update12:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update13:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update14:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update15:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update16:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update2:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update3:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update4:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update5:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update6:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update7:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update8:*:*:*:*:*:*
• cpe:2.3:a:sun:jdk:1.6.0:update9:*:*:*:*:*:*
• cpe:2.3:a:sun:jre:1.4.2_1:*:*:*:*:*:*:*

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