Race condition in the java.lang package in Sun Java SE 5.0 before Update 20 has unknown impact and attack vectors, related to a "3Y Race condition in reflection checks."
Conclusion & alert: CVE-2009-2724 is rated Moderate Risk (63.5/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.58%). Core evidence: EPSS rose +1.04% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule 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 | 0.54% | 1.58% | +1.04% |
| 2 | 2025-03-30 | 2.19% | 0.54% | -1.65% |
| 3 | 2025-03-29 | — | 2.19% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
normal | CVE-2009-2724: 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-2009-2724 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2009-2724 |
ubuntu
|
low | CVE-2009-2724 low priority: Ubuntu including 4 source packages (java, openjdk-6, sun-java5, sun-java6), 36 status rows across 9 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, upstream): not-affected 16, DNE 14, ignored 4, released 2. | https://ubuntu.com/security/CVE-2009-2724 |