A vulnerability has been found in free5GC 3.3.0 and classified as critical. This affects an unknown function of the component PFCP Message Handler. This manipulation causes buffer overflow.
This vulnerability is registered as CVE-2023-47347. The attack requires access to the local network. No exploit is available.
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CVE-2023-47347 | free5GC 3.3.0 PFCP Message buffer overflow (Issue 496 / EUVD-2023-51465)
A vulnerability has been found in free5GC 3.3.0 and classified as critical. This affects an unknown function of the component PFCP Message Handler. This manipulation causes buffer overflow. This vulnerability is registered as…
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IoC Intelligence (1 Indikatoren)
CVE-2023-47347
CTI Threat Relationship Graph2 Knoten / 1 Relationen
IR-PLAYBOOK-VULN-REMEDIATION
MEDIUMSOC Incident Playbook: Vulnerability Remediation & Verification
1-Click Detection Engineering: Sigma & YARA Rules
SOC Readytitle: Detect Exploitation - CVE-2023-47347 | free5GC 3.3.0 PFCP Message buffer overflow (Issue 496 / EUVD-2023-51465)
id: 780bd2c7-c658-41a3-bd58-32ae3fcf98f2
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
- https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-23
logsource:
category: network_connection
product: any
detection:
selection:
CommandLine|contains:
- 'exploit'
condition: selection
falsepositives:
- Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
- attack.initial_accessrule CTI_Threat_Indicator {
meta:
author = "iShareStuff CTI Automated Detection Engine"
date = "2026-09-23"
description = "YARA Signature for "
strings:
$str = "CVE-2023-47347 | free5GC 3.3.0" ascii wide
condition:
any of them
}
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