FlexRIC v2.0.0 uses hardcoded assertions to validate Information Element (IE) counts in decoded E2AP messages. A remote unauthenticated attacker can send a valid E2AP PDU containing an unexpected number of IEs (e.g., an E2setupRequest with extra optional fields) to crash the near-RT RIC (port 36421) or iApp (port 36422) via SIGABRT. The code asserts exact IE counts rather than validating against protocol-specified ranges.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/advisories/CVE-2026-37222.md cve-icon cve-icon
https://gitlab.eurecom.fr/mosaic5g/flexric cve-icon cve-icon
History

Mon, 01 Jun 2026 21:30:00 +0000

Type Values Removed Values Added
Title Hardcoded Assertion Failure in FlexRIC E2AP Message Validation Leads to Remote Crash
Weaknesses CWE-20

Mon, 01 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
Title Hardcoded Assertion Failure in FlexRIC E2AP Message Validation Leads to Remote Crash
Weaknesses CWE-20

Mon, 01 Jun 2026 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-617
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 01 Jun 2026 17:00:00 +0000

Type Values Removed Values Added
Description FlexRIC v2.0.0 uses hardcoded assertions to validate Information Element (IE) counts in decoded E2AP messages. A remote unauthenticated attacker can send a valid E2AP PDU containing an unexpected number of IEs (e.g., an E2setupRequest with extra optional fields) to crash the near-RT RIC (port 36421) or iApp (port 36422) via SIGABRT. The code asserts exact IE counts rather than validating against protocol-specified ranges.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-01T18:46:02.135Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-37222

cve-icon Vulnrichment

Updated: 2026-06-01T18:45:33.667Z

cve-icon NVD

Status : Deferred

Published: 2026-06-01T17:16:58.527

Modified: 2026-06-01T19:16:32.917

Link: CVE-2026-37222

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-01T23:00:16Z

Weaknesses