CVE-2025-69250— free5GC has Improper Error Handling in UDM, Leading to Information Exposure
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I. Basic Information for CVE-2025-69250
Vulnerability Information
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Vulnerability Title
free5GC has Improper Error Handling in UDM, Leading to Information Exposure
Source: NVD (National Vulnerability Database)
Vulnerability Description
free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, the service reliably leaks detailed internal error messages (e.g., strconv.ParseInt parsing errors) to remote clients when processing invalid pduSessionId inputs. This exposes implementation details and can be used for service fingerprinting. All deployments of free5GC using the UDM Nudm_UECM DELETE service may be vulnerable. free5gc/udm pull request 76 contains a fix for the issue. No direct workaround is available at the application level. Applying the official patch is recommended.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
对因果或异常条件的不恰当检查
Source: NVD (National Vulnerability Database)
Vulnerability Title
free5GC 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
free5GC是free5GC开源的一个第 5 代 (5G) 移动核心网络的开源项目。 free5GC 1.4.1及之前版本存在代码问题漏洞，该漏洞源于处理无效pduSessionId输入时可靠地泄露详细内部错误消息，可能暴露实现细节并用于服务指纹识别。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-69250
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Same Patch Batch · free5gc · 2026-02-23 · 7 CVEs total
| CVE-2025-69208 | free5GC UDR's NEF incorrectly returns 500 for missing PFD data (UDR 404) in Nnef_PfdManage | |
| CVE-2025-69247 | free5GC has Heap Buffer Overflow in UPF Leading to Denial of Service | |
| CVE-2025-69248 | free5GC has Array Index Out of Bounds in AMF Leading to Denial of Service | |
| CVE-2025-69232 | free5GC hasProtocol Compliance Violation in UPF Leading to SMF Service Disruption | |
| CVE-2025-69251 | free5GC has Improper Input Validation in UDM, Leading to Information Exposure | |
| CVE-2025-69252 | free5GC has Null Pointer Dereference in UDM, Leading to Service Panic |
IV. Related Vulnerabilities
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Same weakness: CWE-754
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V. Comments for CVE-2025-69250
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