UpHeron
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Servers and applications

CVE-2020-5871

On BIG-IP 14.1.0-14.1.2.3, undisclosed requests can lead to a denial of service (DoS) when sent to BIG-IP HTTP/2 virtual servers. The problem can occur when ciphers, which have been blacklisted by the HTTP/2 RFC, are used on backend servers. This is a data-plane issue. There is no control-plane exposure.

Severity
High 7.5
Published
30 Apr 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_access_policy_manager
  • From 14.1.0 up to 14.1.2.3
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_local_traffic_manager
  • From 14.1.0 up to 14.1.2.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-5871
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-5871