CVE-2003-0896

critical

Description

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.

References

http://www.securityfocus.com/bid/8879

http://www.securityfocus.com/archive/1/342583

http://www.securityfocus.com/archive/1/342580

http://www.securityfocus.com/advisories/6028

http://sunsolve.sun.com/search/document.do?assetkey=1-66-200356-1

http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert/57221

http://marc.info/?l=bugtraq&m=106692334503819&w=2

http://lsd-pl.net/code/JVM/jre.tar.gz

Details

Source: Mitre, NVD

Published: 2003-11-17

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.13978