Buffer overflow in the sun.awt.windows.WDefaultFontCharset Java class implementation in Netscape 4.0 allows remote attackers to execute arbitrary code via an applet that calls the WDefaultFontCharset constructor with a long string and invokes the canConvert method.
https://exchange.xforce.ibmcloud.com/vulnerabilities/10706
https://euvd.enisa.europa.eu/vulnerability/EUVD-2002-2227