CVE-2012-4420

7.5 highEPSS 4.5%

An information disclosure flaw was found in the way the Java Virtual Machine (JVM) implementation of Java SE 7 as provided by OpenJDK 7 incorrectly initialized integer arrays after memory allocation (in certain circumstances they had nonzero elements right after the allocation). A remote attacker could use this flaw to obtain potentially sensitive information.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 4.5% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)
CWE: CWE-200
Published: 2019-12-26
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

oracle:jdk

References

http://www.openwall.com/lists/oss-security/2012/09/13/3
http://www.securityfocus.com/bid/55538
https://access.redhat.com/security/cve/cve-2012-4420
https://bugs.java.com/bugdatabase/view_bug.do?bug_id=7196857
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-4420

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