CVE-2026-37224 Denial of service in n/a

High 7.5 Published Updated

Remote unauthenticated attackers can crash the FlexRIC iApp process by sending duplicate E2 setup requests, causing a denial of service.

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-2026-37224?

CVE-2026-37224 is a high-severity denial of service vulnerability in n/a, published on 1 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

FlexRIC v2.0.0 crashes when receiving a duplicate E2_SETUP_REQUEST from the same or spoofed E2 Node. The iApp registry enforces node ID uniqueness via assert() rather than graceful rejection. A remote unauthenticated attacker can crash the iApp process (port 36421) by sending two E2_SETUP_REQUESTs with the same E2 node configuration, triggering SIGABRT.

Weakness: CWE-617

Which versions are affected by CVE-2026-37224?

How do I fix CVE-2026-37224?

No fix has been published for CVE-2026-37224 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-2026-37224 being exploited?

There is no known exploitation of CVE-2026-37224 in the wild and no public exploit code.

Sources

Also known as GHSA-9rvg-45qw-fjjr.

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