Home/CVE/free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of fr
CVE

CVE-2025-69248

free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of fr

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.

HIGH · CVSS 7.5 EPSS 0.00478
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-129Improper Validation of Array Index
▤

Affected Products & Versions

1
free5gc amf<= 1.4.1
⚠

Public Exploits & PoCs

1
pocgithub.com · issues/747github.com
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD23 Feb 2026 · 10:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/free5gc/free5gc/security/advisories/GHSA-h6xc-8vvf-jcjpPatchVendor Advisory
https://github.com/free5gc/nas/commit/0329a7ac3f314f210366c1b3c33dc29eded4ac5fPatch
https://github.com/free5gc/nas/pull/43Issue TrackingPatch
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