CVE-2026-40618

Summary

When an SSL profile is configured on a virtual server on BIG-IP Virtual Edition (VE) without Intel QuickAssist Technology (QAT) or on BIG-IP hardware platforms with the database variable crypto.hwacceleration set to disabled, 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 Software

VendorProductVersion RangeStatus
F5BIG-IP21.1.0 < *unaffected
F5BIG-IP21.0.0 < 21.0.0.1affected
F5BIG-IP17.5.0 < 17.1.5.4affected
F5BIG-IP17.1.0 < 17.1.3.1affected
F5BIG-IP16.1.0 < *affected
F5BIG-IP Next SPK2.0.0 < *affected
F5BIG-IP Next SPK1.7.0 < *affected
F5BIG-IP Next CNF2.0.0 < *affected
F5BIG-IP Next CNF1.1.0 < *affected
F5BIG-IP Next for Kubernetes2.0.0 < 2.2.0affected

Weaknesses

  • CWE-131: CWE-131 Incorrect Calculation of Buffer Size

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References