CVE-2025-34298: nagios log_server Improper Preservation of Permissions
Vulnerability summary
CVE-2025-34298 is a high (CVSS 8.8) Improper Preservation of Permissions vulnerability in nagios log_server. EPSS estimates a 0.70% chance of exploitation in the next 30 days, higher than 52.7% of scored vulnerabilities.
Timeline
- 30-10-2025PublishedVulnerability first disclosed.
- 17-11-2025Last modifiedVulnerability information updated.
Description
Nagios Log Server versions prior to 2024R1.3.2 contain a privilege escalation vulnerability in the account email-change workflow. A user could set their own email to an invalid value and, due to insufficient validation and authorization checks tied to email identity state, trigger inconsistent account state that granted elevated privileges or bypassed intended access controls.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/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
EPSS trend
Probability
0.70%
Chance of exploitation in the next 30 days
Percentile
53%
Versus all other CVEs
30-day change
+0.05 pp
From 0.66% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Nagios1 product
- log_server< 2024R1.3.2 | < 2024 | 2024:r1 | 2024:r1.0.1 | 2024:r1.0.2 | 2024:r1.1 | 2024:r1.2 | 2024:r1.3 | 2024:r1.3.1
1 vendor · 1 product
References
2 links- www.vulncheck.com/advisories/nagios-log-server-set-email-privilege-escalationThird Party Advisory