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CVE-2026-34019

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CVE-2026-34019

Published: May 13, 2026

Modified: May 13, 2026

PUBLISHED

CVSS v3.1

5.3

MEDIUM

Description

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.

VendorProductVersions

F5

BIG-IP

unaffected
21.0.0 - < *
affected
17.5.0 - < 17.5.1
affected
17.1.0 - < 17.1.3
affected
16.1.0 - < *

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

References

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