In Oryx CycloneTCP 1.9.6, TCP ISNs are improperly random.
https://www.forescout.com/resources/numberjack-weak-isn-generation-in-embedded-tcpip-stacks/
https://www.forescout.com
https://www.cisa.gov/news-events/ics-advisories/icsa-21-042-01
https://www.tenable.com/cyber-exposure/2021-threat-landscape-retrospective
https://www.tenable.com/blog/numberjack-nine-vulnerabilities-across-multiple-open-source-tcpip-stacks
Source: Mitre, NVD
Published: 2023-10-10
Updated: 2023-10-13
Named Vulnerability: NUMBER:JACK
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.00184
