CVE-2026-37229 — HIGH (7.5)

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mosaic5G	Flexric	2.0.0

Related Weaknesses (CWE)

CWE-617

References

https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/ExploitMitigationThird Party Advisory
https://gitlab.eurecom.fr/mosaic5g/flexricProduct

FAQ

What is CVE-2026-37229?

CVE-2026-37229 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 by...

How severe is CVE-2026-37229?

CVE-2026-37229 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-37229?

Check the references section above for vendor advisories and patch information. Affected products include: Mosaic5G Flexric.