CVE-2026-37230: EURECOM FlexRIC NULL pointer dereference in near-RT RIC

CVE-2026-37230 · Severity: info · CVSS 7.5 · Published 2026-06-01

FlexRIC, a software controller used in 5G Radio Access Networks (RAN), is vulnerable to a remote crash. An attacker can send a specially crafted message to the controller that causes the system to shut down unexpectedly. This results in a denial of service, potentially disrupting cellular network management and operations.

Technologies: EURECOM FlexRIC. Vendors: EURECOM.

Quick answers

Is CVE-2026-37230 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-37230 being exploited in the wild.
How severe is CVE-2026-37230?
Informational severity, with a CVSS score of 7.5, published 1 June 2026.
Which products and versions are affected?
EURECOM FlexRIC v2.0.0 through commit 6a595d8b.
Is there a fix for CVE-2026-37230?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-37230 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-37230?
Check whether you run EURECOM FlexRIC at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A NULL pointer dereference exists in FlexRIC v2.0.0 (specifically in src/ric/plugin_ric.c) within the sm_plugin_ric() function. When the near-RT RIC receives a RIC_INDICATION message containing a ran_func_id that is not present in its registry, the lookup function returns NULL. In debug builds, this triggers an assertion failure (SIGABRT); in release builds where assertions are disabled, the subsequent dereference of the NULL pointer leads to a segmentation fault (SIGSEGV). A remote, unauthenticated attacker can exploit this by sending a crafted SCTP packet to port 36421, causing the RIC to crash.

Affected products

  • EURECOM FlexRIC v2.0.0 through commit 6a595d8b

Timeline

  • 2026-06-01: advisory: NVD and researcher advisory published

References

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