CVE-2025-15419 Open5GS GTPv2-C Flow s5c-handler.c sgwc_s5c_handle_create_session_response denial of service
A local attacker can cause a denial of service in Open5GS by manipulating the GTPv2-C flow handler, requiring a patch for mitigation.
- 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-2025-15419?
CVE-2025-15419 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 2 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A weakness has been identified in Open5GS up to 2.7.6. Affected by this issue is the function sgwc_s5c_handle_create_session_response of the file src/sgwc/s5c-handler.c of the component GTPv2-C Flow Handler. Executing a manipulation can lead to denial of service. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. This patch is called 5aaa09907e7b9e0a326265a5f08d56f54280b5f2. It is advisable to implement a patch to correct this issue.
Weakness: CWE-404
Which versions are affected by CVE-2025-15419?
It affects 1 product.
Products include Open5gs Open5gs.
How do I fix CVE-2025-15419?
No fix has been published for CVE-2025-15419 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-2025-15419 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15419 exists.
Other vulnerabilities in Open5gs Open5gs
Sources
Also known as GHSA-fprw-935f-f6f7.