FlexRIC v2.0.0 uses a uint16_t counter for xapp_id assignment but stores the value in uint32_t message fields. After 65,530+ E42_SETUP_REQUESTs, the 16-bit counter wraps around and produces duplicate xapp_ids. The iApp (port 36422) crashes when attempting to register a duplicate ID in its internal data structure. A remote attacker can trigger this by repeatedly connecting and requesting new xApp registrations.
References
| Link | Resource |
|---|---|
| https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/advisories/CVE-2026-37231.md | Exploit Mitigation Third Party Advisory |
| https://gitlab.eurecom.fr/mosaic5g/flexric | Product |
Configurations
History
03 Jun 2026, 17:16
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Mosaic5g flexric
Mosaic5g |
|
| CPE | cpe:2.3:a:mosaic5g:flexric:2.0.0:*:*:*:*:*:*:* | |
| References | () https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/advisories/CVE-2026-37231.md - Exploit, Mitigation, Third Party Advisory | |
| References | () https://gitlab.eurecom.fr/mosaic5g/flexric - Product |
02 Jun 2026, 14:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
| CWE | CWE-191 |
01 Jun 2026, 19:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-01 19:16
Updated : 2026-06-03 17:16
NVD link : CVE-2026-37231
Mitre link : CVE-2026-37231
CVE.ORG link : CVE-2026-37231
JSON object : View
Products Affected
mosaic5g
- flexric
CWE
CWE-191
Integer Underflow (Wrap or Wraparound)