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.
References
| Link | Resource |
|---|---|
| https://github.com/free5gc/free5gc/issues/747 | Exploit Issue Tracking Patch Vendor Advisory |
| https://github.com/free5gc/free5gc/security/advisories/GHSA-h6xc-8vvf-jcjp | Patch Vendor Advisory |
| https://github.com/free5gc/nas/commit/0329a7ac3f314f210366c1b3c33dc29eded4ac5f | Patch |
| https://github.com/free5gc/nas/pull/43 | Issue Tracking Patch |
Configurations
History
25 Feb 2026, 16:35
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Free5gc amf
Free5gc |
|
| Summary |
|
|
| References | () https://github.com/free5gc/free5gc/issues/747 - Exploit, Issue Tracking, Patch, Vendor Advisory | |
| References | () https://github.com/free5gc/free5gc/security/advisories/GHSA-h6xc-8vvf-jcjp - Patch, Vendor Advisory | |
| References | () https://github.com/free5gc/nas/commit/0329a7ac3f314f210366c1b3c33dc29eded4ac5f - Patch | |
| References | () https://github.com/free5gc/nas/pull/43 - Issue Tracking, Patch | |
| CPE | cpe:2.3:a:free5gc:amf:*:*:*:*:*:go:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
24 Feb 2026, 00:16
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) 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. |
23 Feb 2026, 22:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-02-23 22:16
Updated : 2026-02-25 16:35
NVD link : CVE-2025-69248
Mitre link : CVE-2025-69248
CVE.ORG link : CVE-2025-69248
JSON object : View
Products Affected
free5gc
- amf
CWE
CWE-129
Improper Validation of Array Index
