Nagios XI < 2011R1.9 Race Conditions in Crontab Install Scripts LPE
Published Oct 30, 2025
7.3
HIGHCVSS 4.0
EPSS 0.23%
Description
Nagios XI versions prior to 2011R1.9 contain privilege escalation vulnerabilities in the scripts that install or update system crontab entries. Due to time-of-check/time-of-use race conditions and missing synchronization or final-path validation, a local low-privileged user could manipulate filesystem state during crontab installation to influence the files or commands executed with elevated privileges, resulting in execution with higher privileges.
Affected products
-
- Version 0StatusaffectedConstraints<2011R1.9
- Version
- ≤ 2009
- 2011
- 2011
- 2011
- 2011
- 2011
- 2011
- 2011
- 2011
- 2011
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Nagios addresses this vulnerability as "Fixed security escalation race conditions in crontab install scripts."
Metrics
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:L/AC:H/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
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Oct 31, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.23% (0.00233) | 12.89th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.19% (0.00194) | 9.21th | v5 (v2026.06.15) |
| Oct 31, 2025 | 0.01% (0.00011) | 1.06th | v4 (v2025.03.14) |
References (2)
- https://www.nagios.com/changelog/nagios-xi/ release-notespatchRelease Notes
- https://www.vulncheck.com/advisories/nagios-xi-race-conditions-in-crontab-install-script-lpe third-party-advisoryThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.nagios.com/changelog/nagios-xi/ | release-notespatchRelease Notes | |
| https://www.vulncheck.com/advisories/nagios-xi-race-conditions-in-crontab-install-script-lpe | third-party-advisoryThird Party Advisory |
Change history (0)
No recorded changes yet.