CVE-2025-69250 free5GC has Improper Error Handling in UDM, Leading to Information Exposure
Remote attackers can extract internal error details from free5GC UDM, enabling service fingerprinting and exposing implementation specifics.
- 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-2025-69250?
CVE-2025-69250 is a medium-severity vulnerability in free5gc udm, published on 23 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, the service reliably leaks detailed internal error messages (e.g., strconv.ParseInt parsing errors) to remote clients when processing invalid pduSessionId inputs. This exposes implementation details and can be used for service fingerprinting. All deployments of free5GC using the UDM Nudm_UECM DELETE service may be vulnerable. free5gc/udm pull request 76 contains a fix for the issue. No direct workaround is available at the application level. Applying the official patch is recommended.
Which versions are affected by CVE-2025-69250?
It affects 1 product.
Products include Free5gc Udm.
How do I fix CVE-2025-69250?
No fix has been published for CVE-2025-69250 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-69250 being exploited?
There is no known exploitation of CVE-2025-69250 in the wild and no public exploit code.
Other vulnerabilities in free5gc udm
- CVE-2026-33064 free5GC UDM DataChangeNotification Procedure Panic Due to Nil Pointer Dereference
- CVE-2026-33191 free5GC UDM vulnerable to null byte injection in URL path parameters causing 500 Internal Server Error
- CVE-2026-33192 free5GC UDM incorrectly returns 500 for empty supi path parameter in PATCH sdm-subscriptions reques
- CVE-2023-46324 free5GC udm vulnerable to Invalid Curve Attack
- CVE-2026-33065 free5GC UDM incorrectly returns 500 for empty supi path parameter in DELETE sdm-subscriptions request
Sources
Also known as GHSA-6w77-5pqh-83rm.