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CVE-2025-69248

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/23/2026

Last Modified2/25/2026

Sourcenvd

Honeypot Sightings0

Affected Products

free5gc:amf

Weaknesses (CWE)

CWE-129

References

https://github.com/free5gc/free5gc/issues/747(security-advisories@github.com)

https://github.com/free5gc/free5gc/security/advisories/GHSA-h6xc-8vvf-jcjp(security-advisories@github.com)

https://github.com/free5gc/nas/commit/0329a7ac3f314f210366c1b3c33dc29eded4ac5f(security-advisories@github.com)

https://github.com/free5gc/nas/pull/43(security-advisories@github.com)

IOC Correlations

No correlations recorded

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