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CVE-1999-1189

7.5 · HIGH
Published Nov 24, 1999 netscape EPSS 2.52% (84th pctl)

Overview

CVE-1999-1189 is a high-severity vulnerability affecting netscape communicator. It was published on November 24, 1999 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

Buffer overflow in Netscape Navigator/Communicator 4.7 for Windows 95 and Windows 98 allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long argument after the ? character in a URL that references an .asp, .cgi, .html, or .pl file.

Remediation

Check the references section for vendor advisories and patches from netscape. Update communicator to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status

Frequently Asked Questions

What is CVE-1999-1189?

CVE-1999-1189 is a high-severity vulnerability affecting netscape communicator. It was published on November 24, 1999 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-1999-1189?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-1999-1189?

Check the references section for vendor advisories and patches from netscape. Update communicator to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-1999-1189?

CyberStrike's AI-powered security agents can automatically detect CVE-1999-1189 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.