# CVE-2023-30603

## Summary

- **CVE ID:** CVE-2023-30603
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-1392
- **Published:** Jun 2, 2023
- **Last Modified:** Mar 13, 2026

## Description

Hitron Technologies CODA-5310 Telnet function with the default account and password, and there is no warning or prompt to ask users to change the default password and account. An unauthenticated remote attackers can exploit this vulnerability to obtain the administrator’s privilege, resulting in performing arbitrary system operation or disrupt service.

## Affected Products

- Hitron Technologies Inc. — Hitron CODA-5310 (v7.2.4.7.1b3)

## References

- [CNA](https://www.twcert.org.tw/tw/cp-132-7085-13321-1.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.53%
- **EPSS Percentile:** 66.8

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._