---
id: CVE-2025-65559
title: >-
  An issue was discovered in Open5GS 2.7.5-49-g465e90f, when processing a PFCP
  Session Establishment Request (type=50), the UPF crashes with a reachable
  assertion in `lib/pfcp/context.c` (`ogs_pfcp_object_teid_hash_set`) if the
  CreatePDR?P…
summary: >-
  An issue was discovered in Open5GS 2.7.5-49-g465e90f, when processing a PFCP
  Session Establishment Request (type=50), the UPF crashes with a reachable
  assertion in `lib/pfcp/context.c` (`ogs_pfcp_object_teid_hash_set`) if the
  CreatePDR?P…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-617
vendor: open5gs
product: open5gs
affected:
  - open5gs = 2.7.5
published: '2025-12-18'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T11:10:00.203'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-65559'
references:
  - url: 'https://github.com/open5gs/open5gs/issues/4135'
    label: cve@mitre.org
  - url: 'https://github.com/open5gs/open5gs/issues/4135'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00427
epssPercentile: 0.35076
ingestedAt: '2026-10-13T11:23:51.136Z'
---

## Overview

An issue was discovered in Open5GS 2.7.5-49-g465e90f, when processing a PFCP Session Establishment Request (type=50), the UPF crashes with a reachable assertion in `lib/pfcp/context.c` (`ogs_pfcp_object_teid_hash_set`) if the CreatePDR?PDI?F-TEID has CH=1 and the F-TEID address-family flag(s) (IPv4/IPv6) do not match the GTP-U resource family configured for the selected DNN (Network Instance), resulting in a denial of service.

## Affected

- `open5gs = 2.7.5`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.