CVE-2025-54479: BIG-IP PEM vulnerability

Published Oct 15, 2025
·
Updated

When a classification profile is configured on a virtual server without an HTTP or HTTP/2 profile, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate.

Affected Software

17 affected componentsFixes available
F5 BIG-IP Next CNF=2.1.0, =2.0.2, =2.0.1, =2.0.0
2.1.0
F5 BIG-IP Next CNF>=1.1.0<=1.4.0
1.4.0
F5 BIG-IP Next for Kubernetes>=2.0.0<=2.1.0
2.1.0
F5 BIG-IP PEM=17.5.0, >=17.1.0<=17.1.2
17.5.117.1.3
F5 BIG-IP PEM>=16.1.0<=16.1.6
16.1.6.1
F5 BIG-IP PEM>=15.1.0<=15.1.10
15.1.10.8
F5 Big-ip Next Cloud-native Network Functions>=1.1.0<=1.4.0
F5 Big-ip Next Cloud-native Network Functions=2.0.0
F5 Big-ip Next Cloud-native Network Functions=2.0.1
F5 Big-ip Next Cloud-native Network Functions=2.0.2
F5 Big-ip Next Cloud-native Network Functions=2.1.0
F5 BIG-IP Next for Kubernetes=2.0.0
F5 BIG-IP Next for Kubernetes=2.1.0
F5 Big-ip Policy Enforcement Manager>=15.1.0<15.1.10.8
F5 Big-ip Policy Enforcement Manager>=16.1.0<16.1.6.1
F5 Big-ip Policy Enforcement Manager>=17.1.0<17.1.3
F5 Big-ip Policy Enforcement Manager=17.5.0

Event History

Oct 15, 2025
Advisory Published
via F5·11:16 AM
Data Sourced
via F5·11:16 AM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·01:55 PM
Data Sourced
via MITRE·01:55 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-54479?

CVE-2025-54479 is classified with a high severity due to its potential to allow undetected traffic that can cause system termination.

2

How do I fix CVE-2025-54479?

To remediate CVE-2025-54479, upgrade to the appropriate fixed version specified for your F5 BIG-IP software.

3

What are the affected versions for CVE-2025-54479?

CVE-2025-54479 affects specific versions of F5 BIG-IP Next CNF, BIG-IP Next for Kubernetes, and BIG-IP PEM across various releases.

4

Can CVE-2025-54479 lead to a denial-of-service condition?

Yes, CVE-2025-54479 can result in a denial-of-service condition by terminating the Traffic Management Microkernel.

5

Is there a workaround for CVE-2025-54479?

Currently, the recommended action for CVE-2025-54479 is to apply the necessary software upgrade, as no viable workaround has been documented.

Company

Resources

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