CVE-2012-5373: Oracle JDK

Medium severity, CVSS 5.0. EPSS: 2.3% chance of exploitation in the next 30 days.

Oracle Java SE 7 and earlier, and OpenJDK 7 and earlier, computes hash values without properly restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table, as demonstrated by a universal multicollision attack against the MurmurHash3 algorithm, a different vulnerability than CVE-2012-2739.

Affected products

• Oracle JDK: up to and including 1.7.0
• Oracle JRE: up to and including 1.7.0
• Oracle Openjdk: up to and including 1.7.0

Published 2012-11-28. Last modified 2026-06-16.