CVE-2026-37235

FlexRIC v2.0.0 trusts the xapp_id field from E42 message payloads without binding it to the sender's SCTP association. The validation function valid_xapp_id() only checks that the value is within the assigned range. A remote unauthenticated attacker can impersonate any xApp by specifying their xapp_id in requests sent to the iApp (port 36422), causing responses to be misrouted to the victim xApp. This can crash the victim xApp, the RIC, or the iApp itself through state inconsistencies in the red-black tree data structure.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/advisories/CVE-2026-37235.md	Exploit Mitigation Third Party Advisory
https://gitlab.eurecom.fr/mosaic5g/flexric	Product

Configurations

Configuration 1 (hide)

cpe:2.3:a:mosaic5g:flexric:2.0.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-06-01 19:16

Updated : 2026-07-22 07:10

NVD link : CVE-2026-37235

Mitre link : CVE-2026-37235

CVE.ORG link : CVE-2026-37235

JSON object : View

Products Affected

mosaic5g

flexric

CWE

CWE-284

Improper Access Control

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