BIG-IP BFD vulnerability
Published May 13, 2026
6.3
MEDIUMCVSS 4.0
EPSS 0.40%
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.
Affected products
-
- Version 16.1.0StatusaffectedConstraints<*
- Version 17.1.0StatusaffectedConstraints<17.1.3
- Version 17.5.0StatusaffectedConstraints<17.5.1
- Version 21.0.0StatusunaffectedConstraints<*
- Version
Configuration 1
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
- ≥ 17.1.0 · ≤ 17.1.2
- 17.5.0
Configuration 2
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
- ≥ 16.1.0 · ≤ 16.1.6
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS: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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed May 13, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
May–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.40% (0.00402) | 32.04th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.29% (0.00293) | 20.76th | v5 (v2026.06.15) |
| May 14, 2026 | 0.07% (0.00070) | 21.32th | v4 (v2025.03.14) |
References (1)
- https://my.f5.com/manage/s/article/K000150508 vendor-advisorypatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://my.f5.com/manage/s/article/K000150508 | vendor-advisorypatchVendor Advisory |
Change history (0)
No recorded changes yet.