UpHeron
All vulnerabilities

Servers and applications

CVE-2021-23034

On BIG-IP version 16.x before 16.1.0 and 15.1.x before 15.1.3.1, when a DNS profile using a DNS cache resolver is configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Severity
High 7.5
Published
14 Sept 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
15.1.3.1, 16.1.0
Sources
NVD

Affected software

SoftwareAffected versions
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_access_policy_manager
  • From 15.1.0 before 15.1.3.1
  • From 16.0.0 before 16.1.0
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_local_traffic_manager
  • From 15.1.0 before 15.1.3.1
  • From 16.0.0 before 16.1.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-23034
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-23034