CVE-2026-104811

DigitalCanion SA has discovered a vulnerability that allows remote attackers to execute arbitrary code on affected installations of the product. Authentication may be required to exploit this vulnerability. The specific flaw exists within the Configuration → Services → Music on Hold functionality of the web portal listening on TCP port 443. The application is intended to allow users to upload WAV audio files but fails to properly validate the uploaded file type. An attacker can exploit this behavior to upload a malicious shared object (.so) instead of a WAV file. When the uploaded file is subsequently processed by the affected component, attacker-controlled code is loaded and executed in the context of the affected process. This can result in remote code execution and potentially full compromise of the underlying Linux system.

CVSS

No CVSS.

References

Link	Resource
https://digitalcanion.com/en/security-research/#vendor=mitel&status=cna

Configurations

No configuration.

History

05 Oct 2026, 09:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-05 09:17

Updated : 2026-10-06 15:18

NVD link : CVE-2026-104811

Mitre link : CVE-2026-104811

CVE.ORG link : CVE-2026-104811

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-94

Improper Control of Generation of Code ('Code Injection')

CWE-434

Unrestricted Upload of File with Dangerous Type

CWE-829

Inclusion of Functionality from Untrusted Control Sphere

{"id": "CVE-2026-104811", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-104811", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-05T12:37:39.945496Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "vulnerability@ncsc.ch", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.4, "Automatable": "YES", "attackVector": "LOCAL", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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:Y/R:X/V:X/RE:X/U:Amber", "exploitMaturity": "PROOF_OF_CONCEPT", "providerUrgency": "AMBER", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "vulnerability@ncsc.ch", "affectedData": [{"vendor": "Mitel", "product": "Mitel MiVoice Office 400", "versions": [{"status": "affected", "version": "11.0.96.0"}], "platforms": ["Linux"], "defaultStatus": "unknown"}]}], "published": "2026-10-05T09:17:10.290", "references": [{"url": "https://digitalcanion.com/en/security-research/#vendor=mitel&status=cna", "source": "vulnerability@ncsc.ch"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "vulnerability@ncsc.ch", "description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-94"}, {"lang": "en", "value": "CWE-434"}, {"lang": "en", "value": "CWE-829"}]}], "descriptions": [{"lang": "en", "value": "DigitalCanion SA has discovered a vulnerability that allows remote attackers to execute arbitrary code on affected installations of the product. Authentication may be required to exploit this vulnerability.\n\n\n\n\nThe specific flaw exists within the Configuration \u2192 Services \u2192 Music on Hold functionality of the web portal listening on TCP port 443. The application is intended to allow users to upload WAV audio files but fails to properly validate the uploaded file type. An attacker can exploit this behavior to upload a malicious shared object (.so) instead of a WAV file. When the uploaded file is subsequently processed by the affected component, attacker-controlled code is loaded and executed in the context of the affected process. This can result in remote code execution and potentially full compromise of the underlying Linux system."}], "lastModified": "2026-10-06T15:18:12.170", "sourceIdentifier": "vulnerability@ncsc.ch"}