CVE-2026-8252 — Null Pointer Dereference
CVE-2026-8252 — A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function smf_nsmf_handle_create_data_in_hsmf of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be performed from remote. The exploit has been publicly disclosed an
What This Means For You
- If your environment is affected by CWE-404, CWE-476, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-8252 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-8252 - Open5GS SMF Null Pointer Dereference Attempt
title: CVE-2026-8252 - Open5GS SMF Null Pointer Dereference Attempt
id: scw-2026-05-11-ai-1
status: experimental
level: critical
description: |
Detects attempts to exploit CVE-2026-8252 in Open5GS by targeting the vulnerable smf_nsmf_handle_create_data_in_hsmf function via a specific URI path. This indicates a potential null pointer dereference attack.
author: SCW Feed Engine (AI-generated)
date: 2026-05-11
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-8252/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/smf_nsmf_handle_create_data_in_hsmf'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-8252 | vulnerability | CVE-2026-8252 |
| CWE-404 | weakness | CWE-404 |
| CWE-476 | weakness | CWE-476 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 11, 2026 at 03:16 UTC |
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