What’s Vulnerable › Vulnerabilities

CVE-1999-1189

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 1999-11-24 · updated 2026-06-16

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.

Affected products

• Netscape Communicator: 4.7
• Netscape Navigator: 4.7

References

• http://www.securityfocus.com/archive/1/36306
• http://www.securityfocus.com/archive/1/36608
• http://www.securityfocus.com/bid/822
• https://exchange.xforce.ibmcloud.com/vulnerabilities/7884
• http://www.securityfocus.com/archive/1/36306
• http://www.securityfocus.com/archive/1/36608
• http://www.securityfocus.com/bid/822
• https://exchange.xforce.ibmcloud.com/vulnerabilities/7884

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