CVE-2024-14043 Open5GS Diameter S6a mme-fd-path.c mme_s6a_subscription_data_from_avp heap-based overflow
Remote attackers can trigger a heap-based buffer overflow in Open5GS Diameter S6a interface, potentially leading to code execution or service disruption.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-14043?
CVE-2024-14043 is a medium-severity memory corruption vulnerability in Open5GS, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was determined in Open5GS up to 2.7.1. This vulnerability affects the function mme_s6a_subscription_data_from_avp of the file src/mme/mme-fd-path.c of the component Diameter S6a Interface. Executing a manipulation of the argument msisdn_len can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.7.2 is able to resolve this issue. This patch is called 7ea82cb87bb65c3694d8d7c7a5efed1c4d3c9304. Upgrading the affected component is recommended.
Which versions are affected by CVE-2024-14043?
How do I fix CVE-2024-14043?
No fix has been published for CVE-2024-14043 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-14043 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-14043 exists.
Sources
Also known as GHSA-3h9f-gfp6-w666.