CVE-2025-34271

HIGH EPSS 47.7%
Published Oct 30, 20258mo ago · Modified Jun 17, 20261w ago
8.7 CVSS 4.0
High
Find Similar
Published Oct 30, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
8.7
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
47.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-319

Affected Products 14

VendorProductVersionRange
nagioslog_server* <2024
nagioslog_server2024any
nagioslog_server2024any
nagioslog_server2024any
nagioslog_server2024any
nagioslog_server2024any
nagioslog_server2024any
nagioslog_server2024any
nagioslog_server2024any
nagioslog_server2024any
nagioslog_server2024any
nagioslog_server2024any
nagioslog_server2024any
nagioslog_server2024any

References 3

  • nagios.com https://www.nagios.com/changelog/#log-server
    Release Notes
  • nagios.com https://www.nagios.com/products/security/#log-server-2024R2
    Vendor Advisory
  • vulncheck.com https://www.vulncheck.com/advisories/nagios-log-server-cluster-manager-credential-requests-sent-over-plaintext
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.