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Servers and applications

CVE-2020-5947

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),…

Severity
Medium 4.3
Published
19 Nov 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
15.1.2, 16.0.1
Sources
NVD

Affected software

SoftwareAffected versions
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_access_policy_manager
  • From 15.0.0 before 15.1.2
  • From 16.0.0 before 16.0.1
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_local_traffic_manager
  • From 15.0.0 before 15.1.2
  • From 16.0.0 before 16.0.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-5947
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-5947