What’s Vulnerable › Vulnerabilities

CVE-2011-10035: Nagios XI < 2011R1.9 Race Conditions in Crontab Install Scripts LPE

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-30 · updated 2026-10-18
• Weakness: CWE-367

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

• Nagios XI: through 2009; 2011-r1, 2011-r1.1, 2011-r1.2, 2011-r1.3, 2011-r1.4, 2011-r1.5 (+3)

References

• https://www.nagios.com/changelog/nagios-xi/
• https://www.vulncheck.com/advisories/nagios-xi-race-conditions-in-crontab-install-script-lpe

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