Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2025-34274

31
FAUCET Score

CVE-2025-34274 describes an execution with unnecessary privileges vulnerability in Nagios Log Server versions prior to 2024R2.0.3, where its embedded Logstash process runs as the root user. This critical vulnerability, rated 9.8 CVSS, allows an unauthenticated attacker to achieve full system compromise by exploiting Logstash, for example through insecure plugins or input parsing. While the FAUCET Risk Score is high at 88/100, there is currently no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 2024CPE matchmatch criteria
cpe:2.3:a:nagios:log_server:*:*:*:*:*:*:*:*
2024CPE matchmatch criteria
cpe:2.3:a:nagios:log_server:2024:r1:*:*:*:*:*:*
2024CPE matchmatch criteria
cpe:2.3:a:nagios:log_server:2024:r1.0.1:*:*:*:*:*:*
2024CPE matchmatch criteria
cpe:2.3:a:nagios:log_server:2024:r1.0.2:*:*:*:*:*:*
2024CPE matchmatch criteria
cpe:2.3:a:nagios:log_server:2024:r1.1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

9.3CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
1.94%
Probability of exploitation in next 30 days
EPSS Percentile
78.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0194 is in the 67th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

nagios.com / changelog
Release Notes
nagios.com / products/security
Vendor Advisory
vulncheck.com / advisories/nagios-log-server-logstash-process-root-privileges
Third Party Advisory