CVE-2026-71675 Denial of service in n/a

High 7.5 Published Updated

A remote attacker can cause a denial of service in Open5GS via the ngap_send_to_nas function, affecting 5G core network availability.

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-2026-71675?

CVE-2026-71675 is a high-severity denial of service vulnerability in n/a, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue in Open5GS v.2.7.0 allows a remote attacker to cause a denial of service via the ngap_send_to_nas() function in src/amf/ngap-path.c

Weakness: CWE-401

Which versions are affected by CVE-2026-71675?

How do I fix CVE-2026-71675?

No fix has been published for CVE-2026-71675 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-2026-71675 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-71675 exists.

Sources

Also known as GHSA-8g8p-gm6f-4mq4.

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