What is the severity of CVE-2025-20045?

CVE-2025-20045 is classified as a medium severity vulnerability.

How do I fix CVE-2025-20045?

To remediate CVE-2025-20045, upgrade to F5 BIG-IP version 17.1.2, 16.1.5, or ensure you are using the recommended patches for affected versions.

What products are affected by CVE-2025-20045?

The affected products are F5 BIG-IP versions between 17.1.0 and 17.1.1, 16.1.0 and 16.1.4, and 15.1.0 and 15.1.10.

What specific configuration triggers CVE-2025-20045?

CVE-2025-20045 is triggered when the Session Initiation Protocol (SIP) ALG profile is enabled with Passthru Mode on a Message Routing type virtual server.

What potential impact does CVE-2025-20045 have on my system?

CVE-2025-20045 can cause the Traffic Management Microkernel (TMM) to terminate, potentially leading to service disruption.

Vulnerability/
CVE-2025-20045

high

7.5

CWE

476

5/2/2025

CVE-2025-20045: BIG-IP SIP MRF Vulnerability

First published: Wed Feb 05 2025(Updated: )

When SIP session Application Level Gateway mode (ALG) profile with Passthru Mode enabled and SIP router ALG profile are configured on a Message Routing type virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected Software	Affected Version	How to fix
F5 BIG-IP	>=17.1.0<=17.1.1	17.1.2
F5 BIG-IP	>=16.1.0<=16.1.4	16.1.5
F5 BIG-IP	>=15.1.0<=15.1.10	-

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Reference Links

https://my.f5.com/manage/s/article/K000138932

Frequently Asked Questions

What is the severity of CVE-2025-20045?
CVE-2025-20045 is classified as a medium severity vulnerability.
How do I fix CVE-2025-20045?
To remediate CVE-2025-20045, upgrade to F5 BIG-IP version 17.1.2, 16.1.5, or ensure you are using the recommended patches for affected versions.
What products are affected by CVE-2025-20045?
The affected products are F5 BIG-IP versions between 17.1.0 and 17.1.1, 16.1.0 and 16.1.4, and 15.1.0 and 15.1.10.
What specific configuration triggers CVE-2025-20045?
CVE-2025-20045 is triggered when the Session Initiation Protocol (SIP) ALG profile is enabled with Passthru Mode on a Message Routing type virtual server.
What potential impact does CVE-2025-20045 have on my system?
CVE-2025-20045 can cause the Traffic Management Microkernel (TMM) to terminate, potentially leading to service disruption.

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version/f5 big-ip/16.1.4
version/f5 big-ip/15.1.0
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