Free5gc
CVE-2025-69232
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
|
| Impact | CVSS 7.5 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. Exploitable via remote/network. Public exploit/POC available. |
| Exploit ScenarioDerived | A remote attacker could exploit this flaw, Denial of Service. |
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Alert meAnalysisAIv1 – Mar 12, 2026
free5GC is an open-source project for 5th generation (5G) mobile core networks. free5GC go-upf versions up to and including 1.2.6, corresponding to free5gc smf up to and including 1.4.0, have an Improper Input Validation and Protocol Compliance vulnerability leading to Denial of Service. [CVSS 7.5 HIGH]
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Affects your stack
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Technical ContextAI · show details
Classified as CWE-20 (Improper Input Validation). Affects Go-Upf. free5GC is an open-source project for 5th generation (5G) mobile core networks. free5GC go-upf versions up to and including 1.2.6, corresponding to free5gc smf up to and including 1.4.0, have an Improper Input Validation and Protocol Compliance vulnerability leading to Denial of Service. Remote attackers can disrupt core network functionality by sending a malformed PFCP Association Setup Request. The UPF incorrectly accepts it, entering an inconsistent state that causes subsequent legitimate req
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
2DescriptionGitHub Advisory
free5GC is an open-source project for 5th generation (5G) mobile core networks. free5GC go-upf versions up to and including 1.2.6, corresponding to free5gc smf up to and including 1.4.0, have an Improper Input Validation and Protocol Compliance vulnerability leading to Denial of Service. Remote attackers can disrupt core network functionality by sending a malformed PFCP Association Setup Request. The UPF incorrectly accepts it, entering an inconsistent state that causes subsequent legitimate requests to trigger SMF reconnection loops and service degradation. All deployments of free5GC using the UPF and SMF components may be affected. As of time of publication, a fix is in development but not yet available. No direct workaround is available at the application level. Applying the official patch, once released, is recommended.
Executive ViewAI
A denial-of-service vulnerability affecting free5GC 5G core network infrastructure (versions up to 1.2.6 for go-upf and 1.4.0 for SMF) could allow attackers to disrupt mobile network services. Organizations operating or dependent on free5GC deployments face potential service unavailability and customer impact until mitigation measures are implemented.
Implement strict network access controls and firewall rules to limit traffic to SMF/go-upf from trusted sources only; enable deep packet inspection and protocol anomaly detection on network interfaces handling mobile core traffic; configure rate limiting on input validation endpoints; isolate affected components in DMZ with monitoring; establish incident response procedures for service degradation; consider temporary service failover to backup infrastructure if available.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)GitHub Advisory
Free5gc NRF 1.4.0 has an authorization bypass in access token generation that allows authenticated users to request toke
free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile co
free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of fr
An improper input validation and protocol compliance vulnerability in free5GC v4.0.1 allows remote attackers to cause a
free5GC go-upf is the User Plane Function (UPF) implementation for 5G networks that is part of the free5GC project. Vers
An array index out of bounds vulnerability in the AMF component of free5GC v4.0.1 allows remote attackers to cause a den
A heap buffer overflow vulnerability in the UPF component of free5GC v4.0.1 allows remote attackers to cause a denial of
free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile co
Remote attackers can inject control characters into the SUPI parameter of free5GC UDM versions up to 1.4.1, causing URL
free5GC SMF versions up to 1.4.1 crash when receiving malformed PFCP SessionReportRequest packets on UDP port 8805, allo
free5GC SMF versions up to 1.4.1 crash when processing malformed PFCP SessionReportRequest messages on the UDP/8805 inte
free5GC SMF versions up to 1.4.1 crash when processing malformed PFCP SessionReportRequest messages on the PFCP interfac
Exploit-DB