---
id: CVE-2026-34019
title: >-
  When Bidirectional Forwarding Detection (BFD) is configured in Static and
  Dynamic routing protocols, undisclosed traffic can cause the Traffic
  Management Microkernel (TMM) to stop processing BFD packets and cause the
  configured routing p…
summary: >-
  When Bidirectional Forwarding Detection (BFD) is configured in Static and
  Dynamic routing protocols, undisclosed traffic can cause the Traffic
  Management Microkernel (TMM) to stop processing BFD packets and cause the
  configured routing p…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-410
published: '2026-05-13'
updated: '2026-06-29'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-34019'
references:
  - url: 'https://my.f5.com/manage/s/article/K000150508'
    label: f5sirt@f5.com
tags:
  - nvd
epss: 0.00293
epssPercentile: 0.22162
ingestedAt: '2026-06-29T14:29:18.083Z'
---

## Overview

When Bidirectional Forwarding Detection (BFD) is configured in Static and Dynamic routing protocols, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to stop processing BFD packets and cause the configured routing protocol to fail over.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.