VULNERABILITY INTELLIGENCE

CVE-2025-69248

CVSS score7.5 HIGH

EPSS probability0.66%

CISA KEVNot currently listed

Published2026-02-23

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

security-advisories@github.com: CWE-129

Primary references

security-advisories@github.com — Exploit, Issue Tracking, Patch, Vendor Advisory
security-advisories@github.com — Patch, Vendor Advisory
security-advisories@github.com — Patch
security-advisories@github.com — Issue Tracking, Patch