F5-K000152001: Medium severity F5 BIG-IP Next vulnerability

Published Aug 13, 2025
·
Updated

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).

Affected Software

9 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

Event History

Aug 13, 2025
Advisory Published
via F5·01:45 PM
Data Sourced
via F5·01:45 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of F5-K000152001?

The severity of F5-K000152001 is considered high due to the potential for a denial-of-service attack.

2

What types of products are affected by F5-K000152001?

F5-K000152001 affects various versions of F5 BIG-IP Next, BIG-IP Next SPK, BIG-IP Next CNF, and BIG-IP Next for Kubernetes.

3

How do I fix F5-K000152001?

To fix F5-K000152001, upgrade to the latest versions of the affected F5 products as recommended in their advisories.

4

What is the nature of the vulnerability in F5-K000152001?

F5-K000152001 is caused by a flaw in the HTTP/2 implementation that allows malformed control frames to disrupt service.

5

What are the potential consequences of F5-K000152001?

The potential consequences of F5-K000152001 include service disruption and degraded performance due to denial-of-service attacks.

Contact

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