CVE-2020-5947

MediumCVSS 4.3/10Last modified Jun 17, 2026

Description

In versions 16.0.0-16.0.0.1 and 15.1.0-15.1.1, on specific BIG-IP platforms, attackers may be able to obtain TCP sequence numbers from the BIG-IP system that can be reused in future connections with the same source and destination port and IP numbers. Only these platforms are affected: BIG-IP 2000 series (C112), BIG-IP 4000 series (C113), BIG-IP i2000 series (C117), BIG-IP i4000 series (C115), BIG-IP Virtual Edition (VE).

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected software

Vendor	Product	Versions
n/a	BIG-IP 2000 series (C112), BIG-IP 4000 series (C113), BIG-IP i2000 series (C117), BIG-IP i4000 series (C115), BIG-IP Virtual Edition (VE)	16.0.0-16.0.0.1; 15.1.0-15.1.1

References

https://support.f5.com/csp/article/K64571774Vendor Advisory
https://support.f5.com/csp/article/K64571774Vendor Advisory

Timeline

Published: Nov 19, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

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