CVE-2025-44952 Memory corruption in n/a
A local attacker can trigger a buffer overflow in Open5GS PFCP library via oversized DNN fields, potentially causing crashes or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-44952?
CVE-2025-44952 is a high-severity memory corruption vulnerability in Open5gs Open5gs, published on 18 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A missing length check in `ogs_pfcp_subnet_add` function from PFCP library, used by both smf and upf in open5gs 2.7.2 and earlier, allows a local attacker to cause a Buffer Overflow by changing the `session.dnn` field with a value with length greater than 101.
Weakness: CWE-120
Which versions are affected by CVE-2025-44952?
It affects 1 product.
Products include Open5gs Open5gs.
How do I fix CVE-2025-44952?
No fix has been published for CVE-2025-44952 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-2025-44952 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-44952 exists.
Other vulnerabilities in Open5gs Open5gs
Sources
Also known as GHSA-863r-5cgc-6c3p.