CVE-2025-34298: Nagios Log Server

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Nagios Log Server versions prior to 2024R1.3.2 contain a privilege escalation vulnerability in the account email-change workflow. A user could set their own email to an invalid value and, due to insufficient validation and authorization checks tied to email identity state, trigger inconsistent account state that granted elevated privileges or bypassed intended access controls.

Affected products

• Nagios Log Server: before 2024 (fixed in 2024); version 2024 only

Published 2025-10-30. Last modified 2026-10-07.