CVE-2026-37226Network attack vector

Unauthenticated iApp crash via null dereference

Published Jun 1, 2026 · Updated Jun 1, 2026

NULL pointer dereference in EURECOM FlexRIC 2.0.0 allows remote attackers to crash the iApp via an SCTP subscription request. The find_map_e2_node_sad() lookup in src/ric/map_e2_node_sockaddr.c returns NULL for an unknown global_e2_node_id; debug builds assert and abort, while release builds dereference the result and receive SIGSEGV. Reaching the flaw requires no authentication and only network access to the iApp SCTP listener on port 36422, and exploitation interrupts that process rather than reading or modifying data.

CVSS severity7.5
High
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in EURECOM FlexRIC 2.0.0 allows remote attackers to crash the iApp via an SCTP subscription request. The find_map_e2_node_sad() lookup in src/ric/map_e2_node_sockaddr.c returns NULL for an unknown global_e2_node_id; debug builds assert and abort, while release builds dereference the result and receive SIGSEGV. Reaching the flaw requires no authentication and only network access to the iApp SCTP listener on port 36422, and exploitation interrupts that process rather than reading or modifying data.

The record

CVE
CVE-2026-37226
Published
Jun 1, 2026
Updated
Jun 1, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.6oran-security-advisories-zhongnan-luoCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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