---
id: CVE-2025-15684
title: A vulnerability was detected in Open5GS up to 2.7.6
summary: >-
  A vulnerability was detected in Open5GS up to 2.7.6. Affected is the function
  diam_log_func of the file lib/diameter/common/init.c of the component CER
  Handler. The manipulation results in reachable assertion. The attack can be
  executed …
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-617
published: '2026-08-12'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T11:10:00.150'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-15684'
references:
  - url: 'https://github.com/open5gs/open5gs/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/open5gs/open5gs/commit/c1a803516a3c0485696cb9bcca7a80ad857c7383
    label: cna@vuldb.com
  - url: 'https://github.com/open5gs/open5gs/issues/4155'
    label: cna@vuldb.com
  - url: 'https://github.com/open5gs/open5gs/releases/tag/v2.7.7'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2025-15684'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/867102'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/387277'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/387277/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-09-29T11:32:41.232Z'
---

## Overview

A vulnerability was detected in Open5GS up to 2.7.6. Affected is the function diam_log_func of the file lib/diameter/common/init.c of the component CER Handler. The manipulation results in reachable assertion. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 2.7.7 is able to address this issue. The patch is identified as c1a803516a3c0485696cb9bcca7a80ad857c7383. It is advisable to upgrade the affected component.

## Remediation

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