VULNERABILITY INTELLIGENCE

CVE-2021-23034

CVSS score7.5 HIGH
EPSS probability0.95%
CISA KEVNot currently listed
Published2021-09-14
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • f5sirt@f5.com: CWE-20
  • nvd@nist.gov: CWE-668

Primary references