CVE-2025-69232 free5GC hasProtocol Compliance Violation in UPF Leading to SMF Service Disruption
Remote attackers can disrupt 5G core network services by sending malformed PFCP requests to the UPF, causing SMF reconnection loops.
- 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-2025-69232?
CVE-2025-69232 is a low-severity denial of service vulnerability in free5gc go-upf, 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 is an open-source project for 5th generation (5G) mobile core networks. free5GC go-upf versions up to and including 1.2.6, corresponding to free5gc smf up to and including 1.4.0, have an Improper Input Validation and Protocol Compliance vulnerability leading to Denial of Service. Remote attackers can disrupt core network functionality by sending a malformed PFCP Association Setup Request. The UPF incorrectly accepts it, entering an inconsistent state that causes subsequent legitimate requests to trigger SMF reconnection loops and service degradation. All deployments of free5GC using the UPF and SMF components may be affected. As of time of publication, a fix is in development but not yet available. No direct workaround is available at the application level. Applying the official patch, once released, is recommended.
Weakness: CWE-20
Which versions are affected by CVE-2025-69232?
It affects 2 products.
Products include Free5gc Go-Upf, Free5gc Smf.
How do I fix CVE-2025-69232?
No fix has been published for CVE-2025-69232 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-69232 being exploited?
There is no known exploitation of CVE-2025-69232 in the wild and no public exploit code.
Other vulnerabilities in free5gc go-upf
Sources
Also known as GHSA-8m42-qw58-8362.