CVE-2026-37229

Remote Denial of Service Due to Assertion Failure in FlexRIC E2AP Decoding

Published Jun 1, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:mosaic5g:flexric:2.0.0:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Mosaic5g
Mosaic5g flexric
Vendors & Products Mosaic5g
Mosaic5g flexric
Type Values Removed Values Added
Title Remote Denial of Service Due to Assertion Failure in FlexRIC E2AP Decoding
Type Values Removed Values Added
Title Remote Assertion Failure in FlexRIC Causing Process Crash via SCTP
Weaknesses CWE-385
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'}

Type Values Removed Values Added
Title Remote Assertion Failure in FlexRIC Causing Process Crash via SCTP
Weaknesses CWE-385
Type Values Removed Values Added
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.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jun 2, 2026, 12:59 PM
Reserved
Apr 6, 2026, 12:00 AM
Status
Analyzed
Published
Jun 1, 2026, 7:16 PM
Modified
Jul 22, 2026, 7:10 AM