Vulnerability in Butok Fnet

CVE-2020-27633

In FNET 4.6.3, TCP ISNs are improperly random.

EPSS: 0.009 (55.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-27633?
CVE-2020-27633 is a critical-severity vulnerability in Butok Fnet, classified under Use of Insufficiently Random Values. CVSS score: 9.1/10. Published 2023-10-10.
How severe is CVE-2020-27633?
Critical severity. CVSS v3 base score is 9.1 out of 10.