Skip to content
CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-39458

BIG-IP DNS Cache vulnerability

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
f5

Description

When a BIG-IP is configured with DNS caching (Such as a DNS profile with caching enabled, SSL Orchestrator, Advanced WAF DoS protection), undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

F5 BIG-IP

Default version status: unknown

  • 21.1.0 to < *unaffected
  • 21.0.0 to < 21.0.0.1affected
  • 17.5.0 to < 17.5.1.6affected
  • 17.1.0 to < 17.1.3.2affected
  • 16.1.0 to < *affected

References