Vulnerability in Nagios Xi
CVE-2011-10035
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.
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (11.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.nagios.com/changelog/nagios-xi/ (release-notes, Release Notes, patch)
- www.vulncheck.com/advisories/nagios-xi-race-conditions-in-crontab-install-scrip… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2011-10035?
- CVE-2011-10035 is a high-severity vulnerability in Nagios Xi, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.0/10. Published 2025-10-30.
- How severe is CVE-2011-10035?
- High severity. CVSS v3 base score is 7.0 out of 10.