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Fencer Vulns
high 7.5

CVE-2003-0896 in the critical feed json

The loadClass method of the sun.applet.AppletClassLoader class in the Java Virtual Machine (JVM) in Sun SDK and JRE 1.4.1_03 and earlier al…

published 2003-10-25 23 y ago modified 2026-06-16 4 mo ago also EUVD-2003-0886

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
14.3%
EPSS 14.3% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

The loadClass method of the sun.applet.AppletClassLoader class in the Java Virtual Machine (JVM) in Sun SDK and JRE 1.4.1_03 and earlier allows remote attackers to bypass sandbox restrictions and execute arbitrary code via a loaded class name that contains "/" (slash) instead of "." (dot) characters, which bypasses a call to the Security Manager's checkPackageAccess method.

Timeline

  1. First public exploit (EDB-23276)
  2. Published

Exploit prediction

14.32% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-23276 Sun Java Virtual Machine 1.x - Slash Path Security Model Circumvention dos, 2003-10-22

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.