QSearchQSearch

CVE-2026-37231

7.5 HIGH

FlexRIC v2.0.0 uses a uint16_t counter for xapp_id assignment but stores the value in uint32_t message fields

Published: 2026-06-01 · Last updated: 2026-06-03

Severity and scoring

CVSS
7.5 HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
CWE-191

Affected products

VendorProduct
mosaic5gflexric

Description

FlexRIC v2.0.0 uses a uint16_t counter for xapp_id assignment but stores the value in uint32_t message fields. After 65,530+ E42_SETUP_REQUESTs, the 16-bit counter wraps around and produces duplicate xapp_ids. The iApp (port 36422) crashes when attempting to register a duplicate ID in its internal data structure. A remote attacker can trigger this by repeatedly connecting and requesting new xApp registrations.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-37234 — FlexRIC v2.0.0 allows a single SCTP connection to bind multiple xapp_ids by sending multiple E42_SETUP_REQUESTs (8.2 HIGH)
  • CVE-2026-37235 — FlexRIC v2.0.0 trusts the xapp_id field from E42 message payloads without binding it to the sender's SCTP association (7.5 HIGH)
  • CVE-2026-37233 — FlexRIC v2.0.0 contains an authorization bypass in the iApp's xApp isolation mechanism (7.5 HIGH)
  • CVE-2026-37230 — FlexRIC v2.0.0 crashes when the near-RT RIC receives a RIC_INDICATION message with a ran_func_id that does not exist in its registry (7.5 HIGH)
  • CVE-2026-37229 — FlexRIC v2.0.0 contains a reachable assertion in e2ap_create_pdu() triggered when ASN.1 PER decoding fails (7.5 HIGH)

Same CWE

  • CVE-2026-54413 — driftregion iso14229 through 0.9.0 contains an integer underflow and downstream out-of-bounds read in the Handle_0x27_SecurityAccess() fu... (8.2 HIGH)
  • CVE-2026-54412 — LiamBindle MQTT-C through version 1.1.6 contains a heap-based out-of-bounds read and integer underflow in the mqtt_unpack_publish_respons... (8.2 HIGH)
  • CVE-2026-47222 — NanaZip is the 7-Zip derivative intended for the modern Windows experience (5.4 MEDIUM)
  • CVE-2026-11850 — An integer underflow vulnerability was found in MIT krb5 in the berval2tl_data() function in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c (5.0 MEDIUM)
  • CVE-2026-42542 — TDengine is an open source, time-series database optimized for Internet of Things devices (7.5 HIGH)