Is CVE-2026-37221 actively exploited?

No active exploitation of CVE-2026-37221 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-37221 be exploited remotely?

Yes. CVE-2026-37221 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-37221?

CVE-2026-37221 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-37221

HIGH

CVE-2026-37221

CWE-617Published: June 1, 2026· Updated: Jun 17, 2026

7.5

CVSS v3.1

EPSS:0.08%probability of exploitation in 30 daysPercentile:23.9th

Official Description

FlexRIC v2.0.0 crashes when receiving a RIC_SUBSCRIPTION_RESPONSE with an unknown ric_id that has no corresponding pending event. The near-RT RIC uses assert() to enforce the existence of a pending event during response processing. A remote unauthenticated attacker can send a forged RIC_SUBSCRIPTION_RESPONSE to the near-RT RIC (port 36421) to cause SIGABRT in Debug builds or NULL pointer dereference (SIGSEGV) in Release builds.

NVD Source

Technical Analysis

CVE-2026-37221 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.