CVE-2009-2675

CVE-2009-2675 is a critical-severity vulnerability in Sun Jdk with a CVSS 2.0 base score of 10.0. 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-264.

Key facts

• Severity: Critical (CVSS 2.0 base score 10.0)
• EPSS exploit prediction: 4% (90th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-264
• Affected product: Sun Jdk
• Published: 2009-08-05
• Last modified: 2026-06-16

Description

Integer overflow in the unpack200 utility in Sun Java Runtime Environment (JRE) in JDK and JRE 6 before Update 15, and JDK and JRE 5.0 before Update 20, allows context-dependent attackers to gain privileges via unspecified length fields in the header of a Pack200-compressed JAR file, which leads to a heap-based buffer overflow during decompression.

Frequently asked questions

What is CVE-2009-2675?

Integer overflow in the unpack200 utility in Sun Java Runtime Environment (JRE) in JDK and JRE 6 before Update 15, and JDK and JRE 5.0 before Update 20, allows context-dependent attackers to gain privileges via unspecified length fields in the header of a Pack200-compressed JAR file, which leads to a heap-based buffer overflow during decompression.

How severe is CVE-2009-2675?

CVE-2009-2675 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2009-2675 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-2009-2675?

CVE-2009-2675 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-2009-2675?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2009-2675 published?

CVE-2009-2675 was published on 2009-08-05 and last updated on 2026-06-16.

References

• http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=814
• 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=1-66-263488-1
• 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.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
• http://www.zerodayinitiative.com/advisories/ZDI-09-049/
• https://exchange.xforce.ibmcloud.com/vulnerabilities/52307
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10840
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8415
• https://rhn.redhat.com/errata/RHSA-2009-1199.html
• https://rhn.redhat.com/errata/RHSA-2009-1200.html

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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