CVE-2026-92208

NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability

Published Oct 21, 2026 CVSS 3.0 · 8.8 High EPSS < 1% KEV · Not listed
Description
NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NoMachine. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the parsing of mDNS resource records. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-30982.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Nomachine
Nomachine nomachine
Vendors & Products Nomachine
Nomachine nomachine
Type Values Removed Values Added
Description NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NoMachine. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of mDNS resource records. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-30982.
Title NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability
Weaknesses CWE-122
References
Metrics cvssV3_0

{'score': 8.8, 'vector': 'CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
zdi
Published
Updated
Oct 23, 2026, 11:06 AM
Reserved
Sep 15, 2026, 6:16 PM
Status
Awaiting Analysis
Published
Oct 21, 2026, 6:17 PM
Modified
Oct 23, 2026, 12:18 PM