CVE-2025-70122 Memory corruption in n/a
Remote attackers can crash the User Plane Function via a crafted PFCP request, causing denial of service in free5GC deployments.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-70122?
CVE-2025-70122 is a high-severity memory corruption vulnerability in Free5gc Free5gc, published on 13 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A heap buffer overflow vulnerability in the UPF component of free5GC v4.0.1 allows remote attackers to cause a denial of service via a crafted PFCP Session Modification Request. The issue occurs in the SDFFilterFields.UnmarshalBinary function (sdf-filter.go) when processing a declared length that exceeds the actual buffer capacity, leading to a runtime panic and UPF crash.
Weakness: CWE-122
Which versions are affected by CVE-2025-70122?
It affects 1 product.
Products include Free5gc Free5gc.
How do I fix CVE-2025-70122?
No fix has been published for CVE-2025-70122 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-2025-70122 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-70122 exists.
Other vulnerabilities in Free5gc Free5gc
- CVE-2026-44327 free5GC: NEF nnef-oam route group is unauthenticated; no-token requests reach the OAM handler
- CVE-2026-44329 free5GC's SMF UPI management interface lacks auth middleware; unauthenticated topology read/write requests reach handlers
- CVE-2026-44330 free5GC's NEF nnef-pfdmanagement API is unauthenticated; forged bearer tokens can read PFD data and create/delete PFD subscriptions
- CVE-2025-63679 Memory corruption in n/a
- CVE-2026-44315 free5GC's NEF 3gpp-pfd-management API is unauthenticated; forged bearer tokens can create, read, and delete PFD transactions
Sources
Also known as GHSA-fq6p-4h82-858f.