CVE-2025-34227

Nagios XI < 2026R1 is vulnerable to an authenticated command injection vulnerability within the MongoDB Database, MySQL Query, MySQL Server, Postgres Server, and Postgres Query wizards. It is possible to inject shell characters into arguments provided to the service and execute arbitrary system commands on the underlying host as the `nagios` user.

CVSS v4.0

8.6 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/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

CVSS v3.1

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

24.25% chance of exploitation in the next 30 days, 98th percentile

Published

2025-09-25

Updated

2026-05-15

Proof-of-concept exploits (2)

• https://theyhack.me/CVE-2025-34227-Nagios-XI-Wizard-Command-Injection/
• mcorybillington/CVE-2025-34227_Nagios-XI-Command-Injection-Configuration-Wizard

References

• CVE Record
• NVD entry

Related

• CVE-2025-34322
• CVE-2025-34323
• CVE-2025-34206
• CVE-2025-34251
• CVE-2025-34205
• CVE-2025-34256