Windows NT 4.0 generates predictable random TCP initial sequence numbers (ISN), which allows remote attackers to perform spoofing and session hijacking.
https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-046
http://www.securityfocus.com/templates/archive.pike?list=1&msg=4.1.19990824165629.00abcb40%40192.168.124.1
http://www.securityfocus.com/bid/604
Source: Mitre, NVD
Published: 1999-08-24
Updated: 2026-06-16
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 9.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Severity: Critical
EPSS: 0.2262