UpHeron
All vulnerabilities

Servers and applications

CVE-2021-23009

On BIG-IP version 16.0.x before 16.0.1.1 and 15.1.x before 15.1.3, malformed HTTP/2 requests may cause an infinite loop which causes a Denial of Service for Data Plane traffic. TMM takes the configured HA action when the TMM process is aborted. There is no control plane exposure, this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not…

Severity
High 7.5
Published
10 May 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
15.1.3, 16.0.1.1
Sources
NVD

Affected software

SoftwareAffected versions
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_access_policy_manager
  • From 15.1.0 before 15.1.3
  • From 16.0.0 before 16.0.1.1
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_local_traffic_manager
  • From 15.1.0 before 15.1.3
  • From 16.0.0 before 16.0.1.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-23009
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-23009