The Java Management Extensions (JMX) implementation in Sun Java SE 6 before Update 15, and OpenJDK, does not properly enforce OpenType checks, which allows context-dependent attackers to bypass intended access restrictions by leveraging finalizer resurrection to obtain a reference to a privileged object.
Conclusion & alert: CVE-2009-2476 is rated High Risk (70.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.88%). Core evidence: EPSS rose +1.16% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.72% | 2.88% | +1.16% |
| 2 | 2025-10-27 | 1.82% | 1.72% | -0.10% |
| 3 | 2025-03-30 | — | 1.82% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
normal | CVE-2009-2476: 1 GLSA(s) (200911-02), 5 atom(s) (app-emulation/emul-linux-x86-java, dev-java/blackdown-jdk, dev-java/blackdown-jre, dev-java/sun-jdk, dev-java/sun-jre-bin); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-2476 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2009-2476 |
ubuntu
|
medium | CVE-2009-2476 medium priority: Ubuntu including 4 source packages (java, openjdk-6, sun-java5, sun-java6), 32 status rows across 8 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, upstream): DNE 12, released 9, not-affected 7, ignored 3, needs-triage 1. | https://ubuntu.com/security/CVE-2009-2476 |