CVE-2025-34271

CRITICAL

Nagios Log Server < 2024 - Cleartext Transmission

Title source: rule
STIX 2.1

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.

Scores

CVSS v3 9.8
EPSS 0.0106
EPSS Percentile 77.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-319
Status published
Products (2)
nagios/log_server 2024 r1 (13 CPE variants)
nagios/log_server < 2024
Published Oct 30, 2025
Tracked Since Feb 18, 2026