CVE-2026-8249 — Open5GS Denial of Service

title: CVE-2026-8249 - Open5GS SMF Denial of Service Attempt
id: scw-2026-05-10-ai-1
status: experimental
level: critical
description: |
  Detects potential exploitation attempts targeting the update_authorized_pcc_rule_and_qos function in Open5GS SMF component, which is vulnerable to Denial of Service (CVE-2026-8249). This rule looks for processes related to Open5GS that might be interacting with the vulnerable file path within their command line arguments, indicating a potential exploit attempt.
author: SCW Feed Engine (AI-generated)
date: 2026-05-10
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-8249/
tags:
  - attack.impact
  - attack.t1499
logsource:
    category: process_creation
detection:
  selection:
      Image|contains:
          - 'open5gs'
      CommandLine|contains:
          - '/src/smf/npcf-handler.c'
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse