CVE-2025-65566 — HIGH (7.5)

Vulnerability Description

A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface component) in version upf-epc-pfcpiface:2.1.3-dev. When the UPF receives a PFCP Session Report Response that is missing the mandatory Cause Information Element, the session report handler dereferences a nil pointer instead of rejecting the malformed message. This triggers a panic and terminates the UPF process. An attacker who can send PFCP Session Report Response messages to the UPF's N4/PFCP endpoint can exploit this flaw to repeatedly crash the UPF and disrupt user-plane services.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Linuxfoundation	Upf	2.1.3

Related Weaknesses (CWE)

CWE-476

References

https://github.com/omec-project/upf/issues/958ExploitPatchIssue Tracking
https://github.com/omec-project/upf/issues/958ExploitPatchIssue Tracking

FAQ

What is CVE-2025-65566?

CVE-2025-65566 is a vulnerability with a CVSS score of 7.5 (HIGH). A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface component) in version upf-epc-pfcpiface:2.1.3-dev. When the UPF receives a PFCP Session Report Response that is missing the ...

How severe is CVE-2025-65566?

CVE-2025-65566 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-65566?

Check the references section above for vendor advisories and patch information. Affected products include: Linuxfoundation Upf.