CVE-2025-54500 Details
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.
A denial-of-service vulnerability has been identified in F5 BIG-IP and BIG-IP Next products, excluding BIG-IQ Centralized Management and F5OS. This vulnerability arises from an HTTP/2 implementation flaw that allows remote, unauthenticated attackers to use malformed HTTP/2 control frames to exceed the maximum concurrent streams limit, causing increased CPU usage that can lead to a denial-of-service condition on the affected system. This issue is present in BIG-IP versions 15.1.0 through 15.1.10, 16.1.0 through 16.1.6, and 17.5.0 to 17.5.1, as well as in BIG-IP Next versions 20.3.0, 1.7.0 to 1.9.2, and 2.0.0 to 2.0.2.
F5 has released an engineering hotfix for this vulnerability, available through the MyF5 Downloads page. After applying the hotfix, the default sensitivity to this attack can be adjusted by modifying a new db variable, Tmm.HTTP2.RSTFloodCheck. For BIG-IP 17.5.1 through BIG-IQ, an additional fix request may be needed. Consult the F5 product hotfix management guide for details.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 13, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.kb.cert.org/vuls/id/767506 | CVE | Third Party Advisory |
| https://my.f5.com/manage/s/article/K000152001 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-770 | Allocation of Resources Without Limits or Throttling | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| f5 big-ip access policy manager | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip advanced firewall manager | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip advanced web application firewall | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip analytics | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip application acceleration manager | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip application security manager | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip application visibility and reporting | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip automation toolchain | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip carrier-grade nat | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip container ingress services | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip ddos hybrid defender | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip domain name system | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip edge gateway | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip fraud protection service | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip global traffic manager | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 |
CPE
Remediation
| |
| f5 big-ip link controller | >= 15.1.0, < 15.1.1.0.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip local traffic manager | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip policy enforcement manager | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip ssl orchestrator | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip webaccelerator | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip websafe | >= 15.1.0, < 15.1.10.8 >= 16.1.0, < 16.1.6.1 >= 17.1.0, < 17.1.3 >= 17.5.0, < 17.5.1.2 |
CPE
Remediation
| |
| f5 big-ip next central manager | 20.3.0 |
CPE
Remediation
| |
| f5 big-ip next cloud-native network functions | >= 1.1.0, <= 1.4.1 >= 2.0.0, <= 2.0.2 |
CPE
Remediation
| |
| f5 big-ip next for kubernetes | 2.0.0 |
CPE
Remediation
| |
| f5 big-ip next service proxy for kubernetes | >= 1.7.0, <= 1.9.2 >= 2.0.0, <= 2.0.2 |
CPE
Remediation
| |
| f5 silverline | All versions |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Feb 4, 2026 | Modified Analysis | [email protected] |
| Nov 3, 2025 | CVE Modified | CVE |
| Oct 21, 2025 | Initial Analysis | [email protected] |
| Aug 13, 2025 | New CVE Received | [email protected] |