CVE-2025-65561

HIGH

free5gc 4.1.0 - Denial of Service via PFCP Session Modification Request Local SEID Header

Title source: llm

Description

An issue was discovered in function LocalNode.Sess in free5GC 4.1.0 allowing attackers to cause a denial of service or other unspecified impacts via crafted header Local SEID to the PFCP Session Modification Request.

References (2)

Core 2

Core References

Exploit, Issue Tracking, Third Party Advisory

https://github.com/free5gc/free5gc/issues/730

Issue Tracking

https://github.com/free5gc/go-upf/pull/80

Scores

CVSS v3 7.5

EPSS 0.0037

EPSS Percentile 28.6%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact partial

Details

CWE

CWE-20

Status published

Products (1)

free5gc/free5gc 4.1.0

Published Dec 18, 2025

Tracked Since Feb 18, 2026