EUVD-2026-21999
GHSA-xqmq-m74q-gr4q
Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:L/SC:L/SI:L/SA:L/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:N/AU:N/R:U/V:C/RE:M/U:Amber
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:L/SC:L/SI:L/SA:L/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:N/AU:N/R:U/V:C/RE:M/U:Amber
Lifecycle Timeline
6DescriptionCVE.org
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
AnalysisAI
OS command injection in Pandora FMS versions 777 through 800 enables high-privileged remote attackers to execute arbitrary operating system commands through the Event Response execution functionality. While requiring administrative credentials (PR:H), successful exploitation grants extensive system access with high confidentiality and integrity impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Attacker requires high-privilege administrative access to Pandora FMS versions 777–800. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is MODERATE despite the 7.5 CVSS score, constrained primarily by the high privilege requirement (PR:H). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has compromised Pandora FMS administrative credentials (through phishing, credential reuse, or prior system compromise) authenticates to the web interface and navigates to the Event Response configuration. When creating or modifying an event response action, the attacker injects malicious OS commands into input fields that are passed unsanitized to system command execution functions, such as inserting semicolons followed by reverse shell commands. … |
| Remediation | Organizations running Pandora FMS versions 777-800 should immediately consult the official vendor security advisory at https://pandorafms.com/en/security/common-vulnerabilities-and-exposures/ for patch availability and upgrade instructions. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all Pandora FMS deployments and identify instances running versions 777-800; restrict administrative access to Event Response functionality through access controls and privileged access management (PAM) policies. …
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External POC / Exploit Code
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