CVE Catalog
CVE-1999-0031
LowExploitation Probability (EPSS)
Very high risk18.30%
97th percentile — higher than 97% of all known CVEs
Summary
JavaScript in Internet Explorer 3.x and 4.x, and Netscape 2.x, 3.x and 4.x allows remote attackers to monitor a user's web activities, known as the Bell Labs vulnerability.
Risk Assessment
Attackers can collect data on user behavior online, potentially leading to privacy breaches and data security issues.
Recommendation
It is recommended to update browsers to newer versions and implement additional security measures, such as blocking JavaScript from unknown sources.
Original NVD description (English source)
JavaScript in Internet Explorer 3.x and 4.x, and Netscape 2.x, 3.x and 4.x, allows remote attackers to monitor a user's web activities, aka the Bell Labs vulnerability.