cbcvebase.
CVE-2026-34019
published 2026-05-13

CVE-2026-34019: When Bidirectional Forwarding Detection (BFD) is configured in Static and Dynamic routing protocols, undisclosed traffic can cause the Traffic Management…

PriorityP429medium5.3CVSS 3.1
AVNACLPRNUINSUCNINAL
EPSS
0.40%
33.3th percentile
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.

Affected

66 ranges· showing 25
VendorProductVersion rangeFixed in
f5big-ip>= 16.1.0 < **
f5big-ip>= 17.1.0 < 17.1.317.1.3
f5big-ip>= 17.5.0 < 17.5.117.5.1
f5big-ip_access_policy_manager——
f5big-ip_access_policy_manager16.1.0 – 16.1.6—
f5big-ip_access_policy_manager17.1.0 – 17.1.2—
f5big-ip_advanced_firewall_manager——
f5big-ip_advanced_firewall_manager16.1.0 – 16.1.6—
f5big-ip_advanced_firewall_manager17.1.0 – 17.1.2—
f5big-ip_advanced_web_application_firewall——
f5big-ip_advanced_web_application_firewall16.1.0 – 16.1.6—
f5big-ip_advanced_web_application_firewall17.1.0 – 17.1.2—
f5big-ip_analytics——
f5big-ip_analytics16.1.0 – 16.1.6—
f5big-ip_analytics17.1.0 – 17.1.2—
f5big-ip_application_acceleration_manager——
f5big-ip_application_acceleration_manager16.1.0 – 16.1.6—
f5big-ip_application_acceleration_manager17.1.0 – 17.1.2—
f5big-ip_application_security_manager——
f5big-ip_application_security_manager16.1.0 – 16.1.6—
f5big-ip_application_security_manager17.1.0 – 17.1.2—
f5big-ip_application_visibility_and_reporting——
f5big-ip_application_visibility_and_reporting16.1.0 – 16.1.6—
f5big-ip_application_visibility_and_reporting17.1.0 – 17.1.2—
f5big-ip_automation_toolchain——

CVSS provenance

nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
nvdv4.06.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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