CVE-2025-34227

Nagios XI < 2026R1 Configuration Wizard Authenticated Command Injection

HIGH
8.8
CVSS Score
Published: September 25, 2025 at 05:08 PM UTC
Updated: October 11, 2026 at 08:10 PM UTC
1 product affected across 1 vendorNagios XI

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Severity
HIGH8.8
Exploit prediction
EPSS 25%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versionsv ≤ 20262026
Affected range stops below 2026R1, so it looks safe — our inference, not a vendor statement
Affected range stops below r1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

Vendor AdvisoryPatchRelease Notes
Source: cverecord
https://www.nagios.com/changelog/
Vendor AdvisoryPatch
Source: cverecord
https://www.nagios.com/products/security/
Technical DescriptionExploitThird Party Advisory
Source: cverecord
https://theyhack.me/CVE-2025-34227-Nagios-XI-Wizard-Command-Injection/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78

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