CVE-2011-10035

HIGH
Published Oct 30, 2025 Modified Nov 6, 2025 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.

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CVSS v3.1 Score

7.0
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-367 CWE-367

Affected Products

Vendor Product
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi

References

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 7.0 (HIGH).
How severe is CVE-2011-10035? +
CVE-2011-10035 has a CVSS v3.1 score of 7.0 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2011-10035? +
CVE-2011-10035 affects products from nagios, specifically: nagios_xi. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2011-10035? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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