CVE-2026-34188

HighRCE

Published: 13 April 2026

Published

13 April 2026

Modified

22 April 2026

KEV Added

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Patch

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CVSS Score 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0013 32.3th percentile

Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-34188 is a high-severity OS Command Injection (CWE-78) vulnerability in Artica Pandora Fms. Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked at the 32.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Command and Scripting Interpreter (T1059) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Directly requires validation and neutralization of special elements in user inputs to Event Response execution, preventing OS command injection (CWE-78).

SI-2 Flaw Remediation good match

prevent

Ensures timely identification, reporting, and patching of the specific flaw in Pandora FMS versions 777-800 that enables OS command injection.

AC-6 Least Privilege partial match

prevent

Enforces least privilege to restrict high-privilege (PR:H) access needed to exploit the command injection vulnerability via Event Response.

MITRE ATT&CK Enterprise TechniquesAI

T1059 Command and Scripting Interpreter Execution

Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.

attack.mitre.org →

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

OS command injection vulnerability in network-accessible Pandora FMS application directly enables arbitrary OS command execution via T1059: Command and Scripting Interpreter and facilitates exploitation of public-facing applications via T1190: Exploit Public-Facing Application.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

Improper Neutralization of Special Elements used in an OS Command vulnerability allows OS Command Injection via Event Response execution. This issue affects Pandora FMS: from 777 through 800

Deeper analysisAI

CVE-2026-34188 is an improper neutralization of special elements used in an OS command vulnerability that enables OS command injection via Event Response execution. This flaw affects Pandora FMS versions from 777 through 800. It is classified under CWE-78 and carries a CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), indicating high severity due to its potential for significant impact.

An attacker with high privileges (PR:H) can exploit this vulnerability over the network (AV:N) with low complexity (AC:L) and without requiring user interaction (UI:N). Successful exploitation allows arbitrary OS command injection, resulting in high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H), potentially enabling full system compromise on the affected Pandora FMS instance.

Pandora FMS has documented this vulnerability in its security advisories, available at https://pandorafms.com/en/security/common-vulnerabilities-and-exposures/. Security practitioners should consult this resource for details on patches and mitigation steps.