Vulnerability Description
In Oryx CycloneTCP 1.9.6, TCP ISNs are improperly random.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oryx-Embedded | Cyclonetcp | 1.9.6 |
Related Weaknesses (CWE)
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-21-042-01Third Party AdvisoryUS Government Resource
- https://www.forescout.comThird Party Advisory
- https://www.forescout.com/resources/numberjack-weak-isn-generation-in-embedded-tThird Party Advisory
- https://www.cisa.gov/news-events/ics-advisories/icsa-21-042-01Third Party AdvisoryUS Government Resource
- https://www.forescout.comThird Party Advisory
- https://www.forescout.com/resources/numberjack-weak-isn-generation-in-embedded-tThird Party Advisory
FAQ
What is CVE-2020-27631?
CVE-2020-27631 is a vulnerability with a CVSS score of 9.8 (CRITICAL). In Oryx CycloneTCP 1.9.6, TCP ISNs are improperly random.
How severe is CVE-2020-27631?
CVE-2020-27631 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-27631?
Check the references section above for vendor advisories and patch information. Affected products include: Oryx-Embedded Cyclonetcp.