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CVE-2025-20045

BIG-IP SIP MRF Vulnerability

Published: Feb 5, 2025Updated: Oct 21, 2025 Sources: CVE List NVD BDUCWE-476
7.5HIGH
NVD MITRE
EPSS Score
0.4%
Top 70.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-476

Affected Products

BIG-IPF5
On-premNetwork Device
Networking Infrastructure / router-switch
big-ip access policy managerf5
On-premNetwork Device
Networking Infrastructure / firewall
big-ip advanced firewall managerf5
On-premSecurity Product
Networking Infrastructure / firewall
big-ip advanced web application firewallf5
On-premSecurity Product
Networking Infrastructure / firewall
big-ip analyticsf5
On-premNetwork Device
Networking Infrastructure / network-management
f5commercialUSNetworking Infrastructure
and 18 more affected products View all →

Exploitability

Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://my.f5.com/manage/s/article/K000138932
my.f5.com
https://my.f5.com/manage/s/article/K000138757
my.f5.com

Timeline

Published
Feb 5, 2025
Last Updated
Oct 21, 2025

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