CVE-2026-8222 — Open5GS Denial of Service
CVE-2026-8222 — A vulnerability has been found in Open5GS up to 2.7.7. Affected is the function pcf_nbsf_management_handle_register of the file src/pcf/nbsf-handler.c of the component sm-policies Endpoint. Such manipulation leads to denial of service. The attack may be performed from remote. The exp
What This Means For You
- If your environment is affected by CWE-404, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-8222 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
1 rule · 6 SIEM formats1 detection rule auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-8222 - Open5GS sm-policies Endpoint DoS
title: CVE-2026-8222 - Open5GS sm-policies Endpoint DoS
id: scw-2026-05-10-ai-1
status: experimental
level: high
description: |
Detects attempts to exploit CVE-2026-8222 by targeting the sm-policies endpoint with a registration request, which can lead to a denial of service in Open5GS versions up to 2.7.7.
author: SCW Feed Engine (AI-generated)
date: 2026-05-10
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-8222/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/sm-policies'
cs-method:
- 'POST'
cs-uri-query|contains:
- 'register'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-8222 | vulnerability | CVE-2026-8222 |
| CWE-404 | weakness | CWE-404 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 10, 2026 at 06:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
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