CVE-2025-59816: Zenitel ICX500

High severity, CVSS 7.3. EPSS: 0.2% chance of exploitation in the next 30 days.

This vulnerability allows attackers to directly query the underlying database, potentially retrieving all data stored in the Billing Admin database, including user credentials. User passwords are stored in plaintext, significantly increasing the severity of this issue.

Affected products

• Zenitel ICX500: before 1.4.3.3 (fixed in 1.4.3.3)
• Zenitel ICX510: before 1.4.3.3 (fixed in 1.4.3.3)

Published 2025-09-25. Last modified 2026-06-17.