CVE-2021-40343

PoC —

CVSS 3.1

7.8 high

EPSS

<1%p50

Published

Oct 26, 2021 (Oct 26, 2021)

Modified

Jun 17, 2026

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.

Vendors: nagios
Products: nagios xi
Weakness: CWE-732
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.7%)

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