CVE-2012-4823

CVE-2012-4823 is a critical-severity vulnerability in Ibm Java with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

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."

Frequently asked questions

What is CVE-2012-4823?
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."
How severe is CVE-2012-4823?
CVE-2012-4823 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2012-4823 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4823?
CVE-2012-4823 primarily affects Ibm Java. In total, 125 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-4823?
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-2012-4823 published?
CVE-2012-4823 was published on 2013-01-11 and last updated on 2026-06-16.

References

Affected products (125)

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