High severity7.8NVD Advisory· Published Oct 26, 2021· Updated Jun 17, 2026
CVE-2021-40343
CVE-2021-40343
Description
An issue was discovered in Nagios XI 5.8.5. Insecure file permissions on the nagios_unbundler.py file allow the nagios user to elevate their privileges to the root user.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- Nagios XI/Nagios XIdescription
Patches
Vulnerability mechanics
References
3- www.synacktiv.com/sites/default/files/2021-10/Nagios_XI_multiple_vulnerabilities_0.pdfnvdExploitThird Party Advisory
- assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXTnvdRelease NotesVendor Advisory
- synacktiv.comnvdNot Applicable
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