CVE-2025-63679 Memory corruption in n/a

What is CVE-2025-63679?

CVE-2025-63679 is a critical memory corruption vulnerability in Free5gc Free5gc, published on 12 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-120

Which versions are affected by CVE-2025-63679?

It affects 1 product.

Products include Free5gc Free5gc.

How do I fix CVE-2025-63679?

No fix has been published for CVE-2025-63679 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-63679 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63679 exists.

Other vulnerabilities in Free5gc Free5gc

• CVE-2026-44327 free5GC: NEF nnef-oam route group is unauthenticated; no-token requests reach the OAM handler Critical 10.0
• CVE-2026-44329 free5GC's SMF UPI management interface lacks auth middleware; unauthenticated topology read/write requests reach handlers Critical 10.0
• CVE-2026-44330 free5GC's NEF nnef-pfdmanagement API is unauthenticated; forged bearer tokens can read PFD data and create/delete PFD subscriptions Critical 10.0
• CVE-2026-44315 free5GC's NEF 3gpp-pfd-management API is unauthenticated; forged bearer tokens can create, read, and delete PFD transactions Critical 9.4
• CVE-2026-44326 free5GC's NEF 3gpp-traffic-influence API is unauthenticated; missing or forged bearer tokens can create, read, patch, and delete subscriptions Critical 9.4

All Free5gc Free5gc vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7mr7-hhp3-f6qg.