CVE-2026-7780 — Denial of Service

title: CVE-2026-7780 - Open5GS UDM State Operational Denial of Service
id: scw-2026-05-04-ai-1
status: experimental
level: high
description: |
  Detects attempts to exploit CVE-2026-7780 by targeting the udm_state_operational function in Open5GS. This rule looks for specific URI patterns associated with the vulnerable file and a server error response (500) which can indicate a denial of service condition caused by the exploit.
author: SCW Feed Engine (AI-generated)
date: 2026-05-04
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-7780/
tags:
  - attack.impact
  - attack.t1499
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/src/udm/udm-sm.c'
      cs-method:
          - 'POST'
      sc-status:
          - '500'
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse