CVE-2026-37226 — HIGH (7.5)

Vulnerability Description

FlexRIC v2.0.0 crashes when the iApp receives an E42_RIC_SUBSCRIPTION_REQUEST referencing a non-existent E2 Node. The lookup function returns NULL, which is enforced by assert() in Debug builds (SIGABRT) and dereferenced in Release builds (SIGSEGV). A remote unauthenticated attacker can crash the iApp process (port 36422) by sending a subscription request with an arbitrary global_e2_node_id.

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-476

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-2026-37226?

CVE-2026-37226 is a vulnerability with a CVSS score of 7.5 (HIGH). FlexRIC v2.0.0 crashes when the iApp receives an E42_RIC_SUBSCRIPTION_REQUEST referencing a non-existent E2 Node. The lookup function returns NULL, which is enforced by assert() in Debug builds (SIGAB...

How severe is CVE-2026-37226?

CVE-2026-37226 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-2026-37226?

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