CVE-2025-15529 Open5GS s5c-handler.c sgwc_s5c_handle_create_session_response denial of service
Remote attackers can cause a denial of service in Open5GS by manipulating the S5C create session response handling.
- 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-2025-15529?
CVE-2025-15529 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 16 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was found 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. Performing a manipulation results in denial of service. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The patch is named b19cf6a2dbf5d30811be4488bf059c865bd7d1d2. To fix this issue, it is recommended to deploy a patch.
Weakness: CWE-404
Which versions are affected by CVE-2025-15529?
It affects 1 product.
Products include Open5gs Open5gs.
How do I fix CVE-2025-15529?
No fix has been published for CVE-2025-15529 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-2025-15529 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15529 exists.
Other vulnerabilities in Open5gs Open5gs
Sources
Also known as GHSA-4mf2-6634-xrph.