CVE-2012-4823

Unspecified vulnerability in the JRE component in IBM Java 7 SR2 and earlier, Java 6.0.1 SR3 and...

9.3 HighFix available

Unspecified vulnerability in the JRE component in IBM Java 7 SR2 and earlier, Java 6.0.1 SR3 and earlier, Java 6 SR11 and earlier, Java 5 SR14 and earlier, and Java 142 SR13 FP13 and earlier; as used in IBM Rational Host On-Demand, Rational Change, Tivoli Monitoring, Smart Analytics System 5600, Tivoli Remote Control 5.1.2, WebSphere Real Time, Lotus Notes & Domino, Tivoli Storage Productivity Center, and Service Deliver Manager; and other products from other vendors such as Red Hat, allows remote attackers to execute arbitrary code via vectors related to "insecure use of the java.lang.ClassLoder defineClass() method."

Exploit likelihood

6.86%Down 5.4 points since Feb 4, 2022

What each source reports

NVD Score used 9.3

Record: CVE-2012-4823
CVSS 2.0: 9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Updated: 2026-11-02

CVE List No score

Record: CVE-2012-4823
Updated: 2026-11-02

EUVDEUVD-2012-4748 No score

Record: EUVD-2012-4748
Updated: 2026-11-03

GitHub AdvisoriesGHSA-4837-9rvp-84f3 No score

Unspecified vulnerability in the JRE component in IBM Java 7 SR2 and earlier, Java 6.0.1 SR3 and...

Record: GHSA-4837-9rvp-84f3
Updated: 2026-11-02

Affected products

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Affected packages

Affected packages
Package	Affected	Fixed
`java-1.6.0-ibm` Red Hat:rhel_extras:5::client	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-accessibility` Red Hat:rhel_extras:5::client	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-demo` Red Hat:rhel_extras:5::client	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-devel` Red Hat:rhel_extras:5::client	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-javacomm` Red Hat:rhel_extras:5::client	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-jdbc` Red Hat:rhel_extras:5::client	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-plugin` Red Hat:rhel_extras:5::client	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-src` Red Hat:rhel_extras:5::client	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm` Red Hat:rhel_extras:5::server	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-accessibility` Red Hat:rhel_extras:5::server	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8

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Affected packages
Package	Affected	Fixed
`java-1.6.0-ibm-demo` Red Hat:rhel_extras:5::server	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-devel` Red Hat:rhel_extras:5::server	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-javacomm` Red Hat:rhel_extras:5::server	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-jdbc` Red Hat:rhel_extras:5::server	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-plugin` Red Hat:rhel_extras:5::server	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm-src` Red Hat:rhel_extras:5::server	before 1:1.6.0.12.0-1jpp.1.el5_8	1:1.6.0.12.0-1jpp.1.el5_8
`java-1.6.0-ibm` Red Hat:rhel_extras:6	before 1:1.6.0.12.0-1jpp.1.el6_3	1:1.6.0.12.0-1jpp.1.el6_3
`java-1.6.0-ibm-demo` Red Hat:rhel_extras:6	before 1:1.6.0.12.0-1jpp.1.el6_3	1:1.6.0.12.0-1jpp.1.el6_3
`java-1.6.0-ibm-devel` Red Hat:rhel_extras:6	before 1:1.6.0.12.0-1jpp.1.el6_3	1:1.6.0.12.0-1jpp.1.el6_3
`java-1.6.0-ibm-javacomm` Red Hat:rhel_extras:6	before 1:1.6.0.12.0-1jpp.1.el6_3	1:1.6.0.12.0-1jpp.1.el6_3
`java-1.6.0-ibm-jdbc` Red Hat:rhel_extras:6	before 1:1.6.0.12.0-1jpp.1.el6_3	1:1.6.0.12.0-1jpp.1.el6_3
`java-1.6.0-ibm-plugin` Red Hat:rhel_extras:6	before 1:1.6.0.12.0-1jpp.1.el6_3	1:1.6.0.12.0-1jpp.1.el6_3
`java-1.6.0-ibm-src` Red Hat:rhel_extras:6	before 1:1.6.0.12.0-1jpp.1.el6_3	1:1.6.0.12.0-1jpp.1.el6_3
`java-1.7.0-ibm` Red Hat:rhel_extras:6	before 1:1.7.0.3.0-1jpp.2.el6_3	1:1.7.0.3.0-1jpp.2.el6_3
`java-1.7.0-ibm-demo` Red Hat:rhel_extras:6	before 1:1.7.0.3.0-1jpp.2.el6_3	1:1.7.0.3.0-1jpp.2.el6_3
`java-1.7.0-ibm-devel` Red Hat:rhel_extras:6	before 1:1.7.0.3.0-1jpp.2.el6_3	1:1.7.0.3.0-1jpp.2.el6_3
`java-1.7.0-ibm-jdbc` Red Hat:rhel_extras:6	before 1:1.7.0.3.0-1jpp.2.el6_3	1:1.7.0.3.0-1jpp.2.el6_3
`java-1.7.0-ibm-plugin` Red Hat:rhel_extras:6	before 1:1.7.0.3.0-1jpp.2.el6_3	1:1.7.0.3.0-1jpp.2.el6_3
`java-1.7.0-ibm-src` Red Hat:rhel_extras:6	before 1:1.7.0.3.0-1jpp.2.el6_3	1:1.7.0.3.0-1jpp.2.el6_3
`java-1.6.0-ibm` Red Hat:network_satellite:5.4::el5	before 1:1.6.0.14.0-1jpp.1.el5_9	1:1.6.0.14.0-1jpp.1.el5_9
`java-1.6.0-ibm-devel` Red Hat:network_satellite:5.4::el5	before 1:1.6.0.14.0-1jpp.1.el5_9	1:1.6.0.14.0-1jpp.1.el5_9
`java-1.6.0-ibm` Red Hat:network_satellite:5.4::el6	before 1:1.6.0.14.0-1jpp.1.el6_4	1:1.6.0.14.0-1jpp.1.el6_4
`java-1.6.0-ibm-devel` Red Hat:network_satellite:5.4::el6	before 1:1.6.0.14.0-1jpp.1.el6_4	1:1.6.0.14.0-1jpp.1.el6_4
`java-1.6.0-ibm` Red Hat:network_satellite:5.5::el5	before 1:1.6.0.14.0-1jpp.1.el5_9	1:1.6.0.14.0-1jpp.1.el5_9
`java-1.6.0-ibm-devel` Red Hat:network_satellite:5.5::el5	before 1:1.6.0.14.0-1jpp.1.el5_9	1:1.6.0.14.0-1jpp.1.el5_9
`java-1.6.0-ibm` Red Hat:network_satellite:5.5::el6	before 1:1.6.0.14.0-1jpp.1.el6_4	1:1.6.0.14.0-1jpp.1.el6_4
`java-1.6.0-ibm-devel` Red Hat:network_satellite:5.5::el6	before 1:1.6.0.14.0-1jpp.1.el6_4	1:1.6.0.14.0-1jpp.1.el6_4

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2012-4823 is a high vulnerability (CVSS 9.3) in Ibm Java, published January 11, 2013. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.86%, the 94th percentile. Fixed in java-1.6.0-ibm 1:1.6.0.12.0-1jpp.1.el5_8.

References

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Left out here: 522 references. The JSON record has them.