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CVE-2025-69248— free5GC has Array Index Out of Bounds in AMF Leading to Denial of Service

Quick assessment

Affected
free5gc amf
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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及之前版本存在输入验证错误漏洞，该漏洞源于缓冲区溢出，可能导致拒绝服务。

AI Predicted 8.1 Difficulty: Easy EPSS 0.59% · P46
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I. Basic Information for CVE-2025-69248

Vulnerability Information
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Vulnerability Title
free5GC has Array Index Out of Bounds in AMF Leading to Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of free5GC's AMF service have a Buffer Overflow vulnerability leading to Denial of Service. Remote unauthenticated attackers can crash the AMF service by sending a specially crafted NAS Registration Request with a malformed 5GS Mobile Identity, causing complete denial of service for the 5G core network. All deployments of free5GC using the AMF component may be affected. Pull request 43 of the free5gc/nas repo contains a fix. No direct workaround is available at the application level. Applying the official patch is recommended.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
对数组索引的验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
free5GC 输入验证错误漏洞
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及之前版本存在输入验证错误漏洞，该漏洞源于缓冲区溢出，可能导致拒绝服务。
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

Vendor Product Affected Versions CPE Subscribe
free5gc amf <= 1.4.1 -

II. Public POCs for CVE-2025-69248

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III. Intelligence Information for CVE-2025-69248

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Patches & Fixes for CVE-2025-69248 (1)

Other References for CVE-2025-69248 (1)

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-2025-69232 free5GC hasProtocol Compliance Violation in UPF Leading to SMF Service Disruption
CVE-2025-69250 free5GC has Improper Error Handling in UDM, Leading to Information Exposure
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

Same product: amf
Same vendor: free5gc
Same weakness: CWE-129

V. Comments for CVE-2025-69248

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