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CVE-2025-54500

MEDIUMCVSS 6.9/10EPSS 0.46%

Last modified

CVE-2025-54500 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. 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.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
5.3/10

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

CVSS 4.0
6.9/10

CVSS:4.0/AV:N/AC:L/AT:N/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

EPSS Probability
0.46%

36.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Access Policy Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Advanced Firewall Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Advanced Web Application Firewall>= 15.1.0, < 15.1.10.8
F5Big-Ip Analytics>= 15.1.0, < 15.1.10.8
F5Big-Ip Application Acceleration Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Application Security Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Application Visibility And Reporting>= 15.1.0, < 15.1.10.8
F5Big-Ip Automation Toolchain>= 15.1.0, < 15.1.10.8
F5Big-Ip Carrier-Grade Nat>= 15.1.0, < 15.1.10.8
F5Big-Ip Container Ingress Services>= 15.1.0, < 15.1.10.8
F5Big-Ip Ddos Hybrid Defender>= 15.1.0, < 15.1.10.8
F5Big-Ip Domain Name System>= 15.1.0, < 15.1.10.8
F5Big-Ip Edge Gateway>= 15.1.0, < 15.1.10.8
F5Big-Ip Fraud Protection Service>= 15.1.0, < 15.1.10.8
F5Big-Ip Global Traffic Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Link Controller>= 15.1.0, < 15.1.1.0.8
F5Big-Ip Local Traffic Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Policy Enforcement Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Ssl Orchestrator>= 15.1.0, < 15.1.10.8
F5Big-Ip Webaccelerator>= 15.1.0, < 15.1.10.8
F5Big-Ip Websafe>= 15.1.0, < 15.1.10.8
F5Big-Ip Access Policy Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Advanced Firewall Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Advanced Web Application Firewall>= 16.1.0, < 16.1.6.1
F5Big-Ip Analytics>= 16.1.0, < 16.1.6.1
F5Big-Ip Application Acceleration Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Application Security Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Application Visibility And Reporting>= 16.1.0, < 16.1.6.1
F5Big-Ip Automation Toolchain>= 16.1.0, < 16.1.6.1
F5Big-Ip Carrier-Grade Nat>= 16.1.0, < 16.1.6.1
F5Big-Ip Container Ingress Services>= 16.1.0, < 16.1.6.1
F5Big-Ip Ddos Hybrid Defender>= 16.1.0, < 16.1.6.1
F5Big-Ip Domain Name System>= 16.1.0, < 16.1.6.1
F5Big-Ip Edge Gateway>= 16.1.0, < 16.1.6.1
F5Big-Ip Fraud Protection Service>= 16.1.0, < 16.1.6.1
F5Big-Ip Global Traffic Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Link Controller>= 16.1.0, < 16.1.6.1
F5Big-Ip Local Traffic Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Policy Enforcement Manager>= 16.1.0, < 16.1.6.1
F5Big-Ip Ssl Orchestrator>= 16.1.0, < 16.1.6.1
F5Big-Ip Webaccelerator>= 16.1.0, < 16.1.6.1
F5Big-Ip Websafe>= 16.1.0, < 16.1.6.1
F5Big-Ip Access Policy Manager>= 17.1.0, < 17.1.3
F5Big-Ip Access Policy Manager>= 17.5.0, < 17.5.1.2
F5Big-Ip Advanced Firewall Manager>= 17.1.0, < 17.1.3
F5Big-Ip Advanced Firewall Manager>= 17.5.0, < 17.5.1.2
F5Big-Ip Advanced Web Application Firewall>= 17.1.0, < 17.1.3
F5Big-Ip Advanced Web Application Firewall>= 17.5.0, < 17.5.1.2
F5Big-Ip Analytics>= 17.1.0, < 17.1.3
F5Big-Ip Analytics>= 17.5.0, < 17.5.1.2

Showing 50 of 90 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2025-54500?
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.
How severe is CVE-2025-54500?
CVE-2025-54500 has a CVSS score of 6.9/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.
How do I fix CVE-2025-54500?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-54500?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST