CVE-2026-25817

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "HMS Networks Ewon Flexy with firmware before 15.0s4, Cosy+ with firmware 22.xx before 22.1s6, and Cosy+ with firmware 23.xx before 23.0s3 have improper neutralization of special elements used in an OS command allowing remote code execution by attackers with low privilege access on the gateway, provided the attacker has credentials."}, {"lang": "es", "value": "HMS Networks Ewon Flexy con firmware anterior a 15.0s4, Cosy+ con firmware 22.xx anterior a 22.1s6, y Cosy+ con firmware 23.xx anterior a 23.0s3 tienen una neutralizaci\u00f3n incorrecta de elementos especiales utilizados en un comando del sistema operativo, permitiendo la ejecuci\u00f3n remota de c\u00f3digo por atacantes con acceso de bajo privilegio en la pasarela, siempre que el atacante tenga credenciales."}], "id": "CVE-2026-25817", "lastModified": "2026-06-17T10:25:17.620", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-25817", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-13T12:54:57.983949Z", "version": "2.0.3"}}]}, "published": "2026-03-13T19:54:25.283", "references": [{"source": "cve@mitre.org", "url": "https://hmsnetworks.blob.core.windows.net/nlw/docs/default-source/products/cybersecurity/security-advisory/hms-security-advisory-2026-03-09-001---ewon-several-flexy-and-cosy--vulnerabilities.pdf?sfvrsn=f7c027b8_13"}, {"source": "cve@mitre.org", "url": "https://www.hms-networks.com/p/flexy20500-00ma-ewon-flexy-205"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,22.1s6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,23.0s3)"}}], "enrichment": {"confidence": 87.0, "confidence_source": "matching", "scores": [{"score": 90.0, "source": "inferred"}, {"score": 87.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "ewon_cosy", "vendor": "hms-networks"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,15.0s4)"}}], "enrichment": {"confidence": 90.0, "confidence_source": "inferred", "scores": [{"score": 90.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "ewon_flexy", "vendor": "hms-networks"}], "analysis": {"en": {"generated_at": "2026-03-18T15:02:19.633265+00:00", "value": {"mitigation_remediation": ["Upgrade Ewon Flexy firmware to 15.0s4 or later.", "Upgrade Cosy+ firmware 22.xx line to 22.1s6 or later.", "Upgrade Cosy+ firmware 23.xx line to 23.0s3 or later.", "If an upgrade is not immediately possible, restrict gateway access to authorized personnel only and monitor for suspicious activity."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "Affected devices are HMS Networks Ewon Flexy firmware versions earlier than 15.0s4 and Cosy+ firmware 22.xx before 22.1s6 or firmware 23.xx before 23.0s3. No additional product details are available beyond these model and firmware ranges.", "description_and_impact": "The vulnerability arises from improper neutralization of special elements in OS commands, enabling attackers to inject system commands. This leads to remote code execution on the affected gateway devices and is classified as Command Injection (CWE-94).", "risk_and_exploitability": "The CVSS score is 8.8, indicating high severity. The EPSS score is below 1%, reflecting low likelihood of exploitation. Exploitation requires authenticated access with low\u2011privilege credentials on the gateway; therefore, an attacker must first obtain valid credentials. The vulnerability is not listed in the CISA KEV catalog, suggesting it may not yet have known active exploitation, but its high severity plus credential requirement still demand swift action."}}}}, "created": "2026-03-13T09:53:58.963724+00:00", "title": "Improper Command Neutralization Leading to Remote Code Execution in HMS Networks Ewon Flexy and Cosy+ Devices", "updated": "2026-03-20T15:36:33.133775+00:00", "vendors": ["hms-networks", "hms-networks$PRODUCT$ewon_cosy", "hms-networks$PRODUCT$ewon_flexy"]}