CVE-2025-34287

HIGH EPSS 17.7%
Published Oct 30, 20258mo ago · Modified Jun 17, 20261w ago
8.4 CVSS 4.0
High
Find Similar
Published Oct 30, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

Description

Nagios XI versions prior to 2024R2 contain an improperly owned script, process_perfdata.pl, which is executed periodically as the nagios user but owned by www-data. Because the file was writable by www-data, an attacker with web server privileges could modify its contents, leading to arbitrary code execution as the nagios user when the script is next run. This improper ownership and permission configuration enables local privilege escalation.

CVSS Details

Base Score
8.4
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
17.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-732

Affected Products 23

VendorProductVersionRange
nagiosnagios_xi* <2024
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any

References 2

  • nagios.com https://www.nagios.com/changelog/nagios-xi/
    Release Notes
  • vulncheck.com https://www.vulncheck.com/advisories/nagios-xi-privilege-escalation-via-improperly-owned-script
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.