CVE-2026-37231: n/a
CVE-2026-37231 affects FlexRIC v2. 0. 0 where a 16-bit counter used for xapp_id assignment wraps after 65,530+ requests, causing duplicate IDs. This leads to crashes in the iApp component when it tries to register these duplicates. The vulnerability can be triggered remotely by repeatedly requesting new xApp registrations, potentially causing denial of service. No patch or official remediation information is currently available.
AI Analysis
Technical Summary
FlexRIC v2.0.0 uses a uint16_t counter for assigning xapp_id values but stores these IDs in uint32_t message fields. After more than 65,530 E42_SETUP_REQUEST messages, the 16-bit counter wraps around, resulting in duplicate xapp_ids. The iApp listening on port 36422 crashes when it attempts to register a duplicate xapp_id in its internal data structure. A remote attacker can exploit this by repeatedly connecting and requesting new xApp registrations, causing a denial of service via application crash.
Potential Impact
The primary impact is a denial of service condition caused by the iApp crashing when duplicate xapp_ids are registered. This crash is triggered remotely by sending a high volume of E42_SETUP_REQUEST messages, leading to service disruption. There is no indication of code execution or data compromise from the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limiting the rate of E42_SETUP_REQUEST messages or monitoring for abnormal registration activity may help reduce the risk of triggering the crash. No official remediation or workaround has been provided in the available data.
CVE-2026-37231: n/a
Description
CVE-2026-37231 affects FlexRIC v2. 0. 0 where a 16-bit counter used for xapp_id assignment wraps after 65,530+ requests, causing duplicate IDs. This leads to crashes in the iApp component when it tries to register these duplicates. The vulnerability can be triggered remotely by repeatedly requesting new xApp registrations, potentially causing denial of service. No patch or official remediation information is currently available.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FlexRIC v2.0.0 uses a uint16_t counter for assigning xapp_id values but stores these IDs in uint32_t message fields. After more than 65,530 E42_SETUP_REQUEST messages, the 16-bit counter wraps around, resulting in duplicate xapp_ids. The iApp listening on port 36422 crashes when it attempts to register a duplicate xapp_id in its internal data structure. A remote attacker can exploit this by repeatedly connecting and requesting new xApp registrations, causing a denial of service via application crash.
Potential Impact
The primary impact is a denial of service condition caused by the iApp crashing when duplicate xapp_ids are registered. This crash is triggered remotely by sending a high volume of E42_SETUP_REQUEST messages, leading to service disruption. There is no indication of code execution or data compromise from the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limiting the rate of E42_SETUP_REQUEST messages or monitoring for abnormal registration activity may help reduce the risk of triggering the crash. No official remediation or workaround has been provided in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-06T00:00:00.000Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1de301e29bf47b503a4ed3
Added to database: 6/1/2026, 7:52:33 PM
Last enriched: 6/1/2026, 8:05:44 PM
Last updated: 6/2/2026, 5:05:38 AM
Views: 5
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