CVE-2026-37221

HIGH

FlexRIC 2.0.0 - Unauthenticated Denial of Service via Forged RIC_SUBSCRIPTION_RESPONSE

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 7.5
EPSS 0.0035
EPSS Percentile 26.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-617
Status published
Published Jun 01, 2026
Tracked Since Jun 01, 2026