CVE-2025-8803 Open5GS AMF gmm-sm.c gmm_state_exception denial of service
Remote attackers can cause a denial of service in Open5GS AMF by exploiting a flaw in the gmm_state_exception function.
- 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-2025-8803?
CVE-2025-8803 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 10 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been found in Open5GS up to 2.7.5. Affected is the function gmm_state_de_registered/gmm_state_exception of the file src/amf/gmm-sm.c of the component AMF. The manipulation leads to denial of service. It is possible to launch the attack remotely. Upgrading to version 2.7.6 is able to address this issue. The name of the patch is 1f30edac27f69f61cff50162e980fe58fdeb30ca. It is recommended to upgrade the affected component.
Weakness: CWE-404
Which versions are affected by CVE-2025-8803?
It affects 1 product.
Products include Open5gs Open5gs.
How do I fix CVE-2025-8803?
No fix has been published for CVE-2025-8803 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-2025-8803 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8803 exists.
Other vulnerabilities in Open5gs Open5gs
Sources
Also known as GHSA-3h4v-5rmg-5m36.