CVE-2025-69248: free5GC has Array Index Out of Bounds in AMF Leading to Denial of Service
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.
Affected Software
Remediation
Patch Available
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2025-69248?
CVE-2025-69248 has a severity level classified as critical due to its potential for Denial of Service.
How do I fix CVE-2025-69248?
To fix CVE-2025-69248, update free5GC's AMF service to version 1.4.2 or later.
What versions of free5GC are affected by CVE-2025-69248?
CVE-2025-69248 affects free5GC versions up to and including 1.4.1.
What type of vulnerability is CVE-2025-69248?
CVE-2025-69248 is characterized as an Array Index Out of Bounds vulnerability leading to Denial of Service.
Can CVE-2025-69248 be exploited remotely?
Yes, CVE-2025-69248 can be exploited remotely without authentication.