CVE-2025-54500: HTTP/2 Vulnerability
Published Aug 13, 2025
·Updated
An HTTP/2 implementation flaw allows a denial-of-service (DoS) that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit (HTTP/2 MadeYouReset Attack).
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Other sources
An HTTP/2 implementation flaw allows a denial-of-service (DoS) that uses malformed HTTP/2 control frames to break the maximum concurrent streams limit (HTTP/2 MadeYouReset Attack).
— F5
Affected Software
99 affected componentsFixes available
F5 BIG-IP Next=20.3.0
F5 BIG-IP Next SPK>=2.0.0<=2.0.2
F5 BIG-IP Next SPK>=1.7.0<=1.9.2
F5 BIG-IP Next CNF>=2.0.0<=2.0.2
F5 BIG-IP Next CNF>=1.1.0<=1.4.1
F5 BIG-IP Next for Kubernetes=2.0.0
F5 BIG-IP>=17.5.0<=17.5.1, >=17.1.0<=17.1.2
17.5.1.2317.1.33
F5 BIG-IP>=16.1.0<=16.1.6
16.1.6.13
F5 BIG-IP>=15.1.0<=15.1.10
15.1.10.83
F5 BIG-IP Access Policy Manager>=15.1.0<15.1.10.8
F5 BIG-IP Advanced Firewall Manager>=15.1.0<15.1.10.8
F5 Big-ip Advanced Web Application Firewall>=15.1.0<15.1.10.8
F5 BIG-IP Analytics>=15.1.0<15.1.10.8
F5 Big-ip Application Acceleration Manager>=15.1.0<15.1.10.8
F5 BIG-IP Application Security Manager>=15.1.0<15.1.10.8
F5 Big-ip Application Visibility And Reporting>=15.1.0<15.1.10.8
F5 Big-ip Automation Toolchain>=15.1.0<15.1.10.8
F5 Big-ip Carrier-grade Nat>=15.1.0<15.1.10.8
F5 BIG-IP Container Ingress Services>=15.1.0<15.1.10.8
F5 Big-ip Ddos Hybrid Defender>=15.1.0<15.1.10.8
F5 Big-ip Domain Name System>=15.1.0<15.1.10.8
F5 BIG-IP Edge Gateway>=15.1.0<15.1.10.8
F5 Big-ip Fraud Protection Service>=15.1.0<15.1.10.8
F5 Big-ip Global Traffic Manager>=15.1.0<15.1.10.8
F5 Big-ip Link Controller>=15.1.0<15.1.1.0.8
F5 Big-ip Local Traffic Manager>=15.1.0<15.1.10.8
F5 Big-ip Policy Enforcement Manager>=15.1.0<15.1.10.8
F5 BIG-IP SSL Orchestrator>=15.1.0<15.1.10.8
F5 Big-ip Webaccelerator>=15.1.0<15.1.10.8
F5 Big-ip Websafe>=15.1.0<15.1.10.8
F5 BIG-IP Access Policy Manager>=16.1.0<16.1.6.1
F5 BIG-IP Advanced Firewall Manager>=16.1.0<16.1.6.1
F5 Big-ip Advanced Web Application Firewall>=16.1.0<16.1.6.1
F5 BIG-IP Analytics>=16.1.0<16.1.6.1
F5 Big-ip Application Acceleration Manager>=16.1.0<16.1.6.1
F5 BIG-IP Application Security Manager>=16.1.0<16.1.6.1
F5 Big-ip Application Visibility And Reporting>=16.1.0<16.1.6.1
F5 Big-ip Automation Toolchain>=16.1.0<16.1.6.1
F5 Big-ip Carrier-grade Nat>=16.1.0<16.1.6.1
F5 BIG-IP Container Ingress Services>=16.1.0<16.1.6.1
F5 Big-ip Ddos Hybrid Defender>=16.1.0<16.1.6.1
F5 Big-ip Domain Name System>=16.1.0<16.1.6.1
F5 BIG-IP Edge Gateway>=16.1.0<16.1.6.1
F5 Big-ip Fraud Protection Service>=16.1.0<16.1.6.1
F5 Big-ip Global Traffic Manager>=16.1.0<16.1.6.1
F5 Big-ip Link Controller>=16.1.0<16.1.6.1
F5 Big-ip Local Traffic Manager>=16.1.0<16.1.6.1
F5 Big-ip Policy Enforcement Manager>=16.1.0<16.1.6.1
F5 BIG-IP SSL Orchestrator>=16.1.0<16.1.6.1
F5 Big-ip Webaccelerator>=16.1.0<16.1.6.1
F5 Big-ip Websafe>=16.1.0<16.1.6.1
F5 BIG-IP Access Policy Manager>=17.1.0<17.1.3
F5 BIG-IP Access Policy Manager>=17.5.0<17.5.1.2
F5 BIG-IP Advanced Firewall Manager>=17.1.0<17.1.3
F5 BIG-IP Advanced Firewall Manager>=17.5.0<17.5.1.2
F5 Big-ip Advanced Web Application Firewall>=17.1.0<17.1.3
F5 Big-ip Advanced Web Application Firewall>=17.5.0<17.5.1.2
F5 BIG-IP Analytics>=17.1.0<17.1.3
F5 BIG-IP Analytics>=17.5.0<17.5.1.2
F5 Big-ip Application Acceleration Manager>=17.1.0<17.1.3
F5 Big-ip Application Acceleration Manager>=17.5.0<17.5.1.2
F5 BIG-IP Application Security Manager>=17.1.0<17.1.3
F5 BIG-IP Application Security Manager>=17.5.0<17.5.1.2
F5 Big-ip Application Visibility And Reporting>=17.1.0<17.1.3
F5 Big-ip Application Visibility And Reporting>=17.5.0<17.5.1.2
F5 Big-ip Automation Toolchain>=17.1.0<17.1.3
F5 Big-ip Automation Toolchain>=17.5.0<17.5.1.2
F5 Big-ip Carrier-grade Nat>=17.1.0<17.1.3
F5 Big-ip Carrier-grade Nat>=17.5.0<17.5.1.2
F5 BIG-IP Container Ingress Services>=17.1.0<17.1.3
F5 BIG-IP Container Ingress Services>=17.5.0<17.5.1.2
F5 Big-ip Ddos Hybrid Defender>=17.1.0<17.1.3
F5 Big-ip Ddos Hybrid Defender>=17.5.0<17.5.1.2
F5 Big-ip Domain Name System>=17.1.0<17.1.3
F5 Big-ip Domain Name System>=17.5.0<17.5.1.2
F5 BIG-IP Edge Gateway>=17.1.0<17.1.3
F5 BIG-IP Edge Gateway>=17.5.0<17.5.1.2
F5 Big-ip Fraud Protection Service>=17.1.0<17.1.3
F5 Big-ip Fraud Protection Service>=17.5.0<17.5.1.2
F5 Big-ip Global Traffic Manager>=17.1.0<17.1.3
F5 Big-ip Link Controller>=17.1.0<17.1.3
F5 Big-ip Link Controller>=17.5.0<17.5.1.2
F5 Big-ip Local Traffic Manager>=17.1.0<17.1.3
F5 Big-ip Local Traffic Manager>=17.5.0<17.5.1.2
F5 Big-ip Policy Enforcement Manager>=17.1.0<17.1.3
F5 Big-ip Policy Enforcement Manager>=17.5.0<17.5.1.2
F5 BIG-IP SSL Orchestrator>=17.1.0<17.1.3
F5 BIG-IP SSL Orchestrator>=17.5.0<17.5.1.2
F5 Big-ip Webaccelerator>=17.1.0<17.1.3
F5 Big-ip Webaccelerator>=17.5.0<17.5.1.2
F5 Big-ip Websafe>=17.1.0<17.1.3
F5 Big-ip Websafe>=17.5.0<17.5.1.2
F5 BIG-IP Next Central Manager=20.3.0
F5 Big-ip Next Cloud-native Network Functions>=1.1.0<=1.4.1
F5 Big-ip Next Cloud-native Network Functions>=2.0.0<=2.0.2
F5 BIG-IP Next for Kubernetes=2.0.0
F5 Big-ip Next Service Proxy For Kubernetes>=1.7.0<=1.9.2
F5 Big-ip Next Service Proxy For Kubernetes>=2.0.0<=2.0.2
F5 Silverline
Event History
Aug 13, 2025
Advisory Published
via F5·01:45 PM
Data Sourced
via F5·01:45 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·02:46 PM
Data Sourced
via MITRE·02:46 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·03:15 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2025-54500?
CVE-2025-54500 has been rated as a denial-of-service vulnerability affecting specific versions of F5 software.
2
How do I fix CVE-2025-54500?
To mitigate CVE-2025-54500, update your F5 software to the latest unaffected version.
3
What types of products are affected by CVE-2025-54500?
CVE-2025-54500 affects F5 products like BIG-IP Next, BIG-IP Next SPK, and BIG-IP for Kubernetes.
4
What versions of F5 software are vulnerable to CVE-2025-54500?
F5 BIG-IP and BIG-IP Next versions within specific ranges are vulnerable to CVE-2025-54500.
5
Can CVE-2025-54500 be exploited remotely?
Yes, CVE-2025-54500 can be exploited remotely through malformed HTTP/2 control frames.