CVE-2025-54500

HTTP/2 Vulnerability

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.

Category

6.9
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.07%
Vendor Advisory f5.com
Affected: F5 BIG-IP
Affected: F5 BIG-IP Next
Affected: F5 BIG-IP Next SPK
Affected: F5 BIG-IP Next CNF
Affected: F5 BIG-IP Next for Kubernetes
Published at:
Updated at:

References

Link Tags
https://my.f5.com/manage/s/article/K000152001 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2025-54500?
CVE-2025-54500 has been scored as a medium severity vulnerability.
How to fix CVE-2025-54500?
To fix CVE-2025-54500, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-54500 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-54500 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-54500?
CVE-2025-54500 affects F5 BIG-IP, F5 BIG-IP Next, F5 BIG-IP Next SPK, F5 BIG-IP Next CNF, F5 BIG-IP Next for Kubernetes.
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