FlexRIC 2.0.0 xApp xapp_ric_id.c eq_xapp_ric_gen_id authorization

Summaryinfo

A vulnerability categorized as problematic has been discovered in FlexRIC 2.0.0. Impacted is the function eq_xapp_ric_gen_id of the file src/ric/iApp/xapp_ric_id.c of the component xApp Handler. The manipulation results in authorization. This vulnerability is identified as CVE-2026-37233. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in FlexRIC 2.0.0. It has been classified as problematic. Affected is the function eq_xapp_ric_gen_id of the file src/ric/iApp/xapp_ric_id.c of the component xApp Handler. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. This is going to have an impact on integrity, and availability. CVE summarizes:

FlexRIC v2.0.0 contains an authorization bypass in the iApp's xApp isolation mechanism. The equality function eq_xapp_ric_gen_id() in src/ric/iApp/xapp_ric_id.c compares m0->xapp_id against itself (m0->xapp_id) instead of the other argument (m1->xapp_id), effectively ignoring the xApp identity dimension. A malicious xApp connected to the iApp (port 36422) can delete any other xApp's subscriptions by sending an E42_RIC_SUBSCRIPTION_DELETE_REQUEST with a matching ric_gen_id. This breaks multi-tenant isolation in any deployment with multiple xApps sharing the same RIC.

The advisory is available at gitlab.eurecom.fr. This vulnerability is traded as CVE-2026-37233 since 04/06/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/07/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• FlexRIC

Version

• 2.0.0

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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