CVE-2026-34019— BIG-IP BFD vulnerability
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I. Basic Information for CVE-2026-34019
Vulnerability Information
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Vulnerability Title
BIG-IP BFD vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
不充分的资源池
Source: NVD (National Vulnerability Database)
Vulnerability Title
F5 BIG-IP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
F5 BIG-IP是美国F5公司的一款集成了网络流量管理、应用程序安全管理、负载均衡等功能的应用交付平台。 F5 BIG-IP存在安全漏洞，该漏洞源于在静态和动态路由协议中配置双向转发检测时，未公开的流量可能导致TMM停止处理BFD数据包，导致配置的路由协议故障转移。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-34019
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Same Patch Batch · F5 · 2026-05-13 · 51 CVEs total
| CVE-2026-41225 | 9.1 CRITICAL | iControl REST vulnerability |
| CVE-2026-41957 | 8.8 HIGH | BIG-IP and BIG-IQ Configuration utility vulnerability |
| CVE-2026-40061 | 8.7 HIGH | iControl REST and tmsh vulnerability |
| CVE-2026-42930 | 8.7 HIGH | Appliance mode iControl REST vulnerability |
| CVE-2026-32673 | 8.7 HIGH | BIG-IP scripted monitor vulnerability |
| CVE-2026-34176 | 8.7 HIGH | Knowledge Appliance mode iControl REST vulnerability |
| CVE-2026-42945 | 8.1 HIGH | NGINX ngx_http_rewrite_module vulnerability |
| CVE-2026-20916 | 8.1 HIGH | BIG-IQ iControl REST vulnerability |
| CVE-2026-41217 | 7.9 HIGH | BIG-IP tmsh vulnerability |
| CVE-2026-41218 | 7.5 HIGH | BIG-IP PEM iRules vulnerability |
| CVE-2026-39455 | 7.5 HIGH | BIG-IP Configuration utility vulnerability |
| CVE-2026-39458 | 7.5 HIGH | BIG-IP DNS Cache vulnerability |
| CVE-2026-40423 | 7.5 HIGH | BIG-IP SIP profile vulnerability |
| CVE-2026-40629 | 7.5 HIGH | BIG-IP SSL/TLS vulnerability |
| CVE-2026-42920 | 7.5 HIGH | BIG-IP DTLS Vulnerability |
| CVE-2026-40618 | 7.5 HIGH | BIG-IP SSL/TLS vulnerability |
| CVE-2026-41956 | 7.5 HIGH | BIG-IP TMM Vulnerability |
| CVE-2026-40060 | 7.5 HIGH | BIG-IP Advanced WAF and ASM vulnerability |
| CVE-2026-41227 | 7.5 HIGH | BIG-IP HTTP/2 Layer 7 Dos Protection vulnerability |
| CVE-2026-42409 | 7.5 HIGH | BIG-IP HTTP/2 vulnerability |
Showing top 20 of 51 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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V. Comments for CVE-2026-34019
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