Multipath TCP Vulnerability in F5 Networks Product
CVE-2025-48008

8.7HIGH

Key Information:

Vendor

F5
Status
Big-ip
Big-ip Next Spk
Big-ip Next Cnf
Vendor
CVE Published:
15 October 2025

What is CVE-2025-48008?

A vulnerability exists in F5 Networks' Traffic Management Microkernel when utilizing Multipath TCP on a virtual server. Under certain conditions, including undisclosed traffic and factors outside the attacker's influence, the system can experience unexpected terminations, potentially leading to service disruption. Software versions that have reached End of Technical Support (EoTS) are not assessed for this issue.

Affected Version(s)

BIG-IP 17.1.0 < 17.1.2.2

BIG-IP 16.1.0 < 16.1.6

BIG-IP 15.1.0 < 15.1.10.8

References

https://my.f5.com/manage/s/article/K000150614
vendor-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

F5
JSON
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CVE-2025-48008 : Multipath TCP Vulnerability in F5 Networks Product