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CVE-2026-37229

7.5 HIGH

FlexRIC v2.0.0 contains a reachable assertion in e2ap_create_pdu() triggered when ASN.1 PER decoding fails

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-617

Affected products

VendorProduct
mosaic5gflexric

Description

FlexRIC v2.0.0 contains a reachable assertion in e2ap_create_pdu() triggered when ASN.1 PER decoding fails. A remote unauthenticated attacker can send any non-PER byte sequence (e.g., a single 0x00 byte) over SCTP to the near-RT RIC (port 36421) or iApp (port 36422) to crash the process via SIGABRT. The assertion is reached before any protocol-level validation occurs. All three E2AP protocol versions (v1.01, v2.03, v3.01) are affected.

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-2026-37231 — FlexRIC v2.0.0 uses a uint16_t counter for xapp_id assignment but stores the value in uint32_t message fields (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)

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