CVE-1999-1226

critical

Description

Netscape Communicator 4.7 and earlier allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long certificate key.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/3436

http://www.securiteam.com/exploits/Netscape_4_7_and_earlier_vulnerable_to__Huge_Key__DoS.html

Details

Source: Mitre, NVD

Published: 1999-10-28

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 2.6

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

Severity: Low

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: 0.00505