Description
The free5GC UPF suffers from a lack of bounds checking on the SEID when processing PFCP Session Deletion Requests. An unauthenticated remote attacker can send a request with a very large SEID (e.g., 0xFFFFFFFFFFFFFFFF) that causes an integer conversion/underflow in LocalNode.DeleteSess() / LocalNode.Sess() when a uint64 SEID is converted to int and used in index arithmetic. This leads to a negative index into n.sess and a Go runtime panic, resulting in a denial of service (UPF crash). The issue has been reproduced on free5GC v4.1.0 with crashes observed in the session lookup/deletion path in internal/pfcp/node.go; other versions may also be affected. No authentication is required.
INFO
Published Date :
2025-12-18T00:00:00.000Z
Last Modified :
2025-12-19T18:01:34.231Z
Source :
mitre
AFFECTED PRODUCTS
The following products are affected by CVE-2025-65562 vulnerability.
| Vendors | Products |
|---|---|
| Free5gc |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2025-65562.
| URL | Resource |
|---|---|
| https://github.com/free5gc/free5gc/issues/731 |
|