# CVE-2025-34271

## Summary

- **CVE ID:** CVE-2025-34271
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-319
- **Published:** Oct 30, 2025
- **Last Modified:** Mar 12, 2026

## Description

Nagios Log Server versions prior to 2024R2.0.2 contain a vulnerability in the cluster manager component when requesting sensitive credentials from peer nodes over an unencrypted channel even when SSL/TLS is enabled in the product configuration. As a result, an attacker positioned on the network path can intercept credentials in transit. Captured credentials could allow the attacker to authenticate as a cluster node or service account, enabling further unauthorized access, lateral movement, or system compromise.

## Affected Products

- Nagios — Log Server (0)

## References

- [CNA](https://www.nagios.com/products/security/#log-server-2024R2)
- [CNA](https://www.nagios.com/changelog/#log-server)
- [CNA](https://www.vulncheck.com/advisories/nagios-log-server-cluster-manager-credential-requests-sent-over-plaintext)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.69%
- **EPSS Percentile:** 50.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._