CVE-2021-45918: Nhi Health Insurance Web Service Component

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

NHI’s health insurance web service component has insufficient validation for input string length, which can result in heap-based buffer overflow attack. A remote attacker can exploit this vulnerability to flood the memory space reserved for the program, in order to terminate service without authentication, which requires a system restart to recover service.

Affected products

• Nhi Health Insurance Web Service Component: affected versions not specified

Published 2022-06-20. Last modified 2026-06-17.