CVE-2025-34271
criticalpriority · track · 39OT risk · elevatedEPSS 0.007 · 55 %ileEURUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.6–9.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://www.nagios.com/changelog/#log-servercnnvd
- https://www.nagios.com/products/security/#log-server-2024R2cnnvd
- https://www.vulncheck.com/advisories/nagios-log-server-cluster-manager-credential-requests-sent-over-plaintextcnnvd
- https://www.nagios.com/changelog/#log-serverenisa_euvd
- https://www.nagios.com/products/security/#log-server-2024R2enisa_euvd
- https://www.vulncheck.com/advisories/nagios-log-server-cluster-manager-credential-requests-sent-over-plaintextenisa_euvd
- https://www.nagios.com/changelog/#log-serverRelease Notesnvd
- https://www.nagios.com/products/security/#log-server-2024R2Vendor Advisorynvd
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