CVE-2025-63679

free5gc v4.1.0 and before is vulnerable to Buffer Overflow. When AMF receives an UplinkRANConfigurationTransfer NGAP message from a gNB, the AMF process crashes.

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 CNA

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.43% chance of exploitation in the next 30 days, 36th percentile

Published

2025-11-12

Updated

2025-11-13

Proof-of-concept exploits (1)

• https://gist.github.com/DDGod2025/5483d94b028d7a0c111ca23844e8a94d

Security advisories

• free5gc/free5gc/issues/725

References

• CVE Record
• NVD entry