CVE-2026-7706 — Open5GS Denial of Service

CVE-2026-7706 — Open5GS Denial of Service

CVE-2026-7706 — A vulnerability has been found in Open5GS up to 2.7.7. This issue affects the function gmm_handle_service_request of the file /src/amf/gmm-handler.c of the component AMF. The manipulation leads to denial of service. The attack can be initiated remotely. The exploit has been disclosed

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-2026-7706 updates and patches.

Related ATT&CK Techniques

🛡️ Detection Rules

2 rules · 6 SIEM formats

2 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.

high T1499 Impact

CVE-2026-7706 - Open5GS AMF Service Request DoS

Sigma YAML — free preview
title: CVE-2026-7706 - Open5GS AMF Service Request DoS
id: scw-2026-05-03-ai-1
status: experimental
level: high
description: |
  Detects attempts to exploit CVE-2026-7706 by targeting the /amf/v1/service-requests endpoint with a POST request, which is known to trigger a denial of service vulnerability in Open5GS AMF component.
author: SCW Feed Engine (AI-generated)
date: 2026-05-03
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-7706/
tags:
  - attack.impact
  - attack.t1499
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/amf/v1/service-requests'
      cs-method:
          - 'POST'
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse

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Indicators of Compromise

IDTypeIndicator
CVE-2026-7706 vulnerability CVE-2026-7706
CWE-404 weakness CWE-404
Source & Attribution
Source PlatformNVD
ChannelNational Vulnerability Database
PublishedMay 04, 2026 at 02:16 UTC

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