CVE-2026-92208
NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability
- Published
- Oct 21, 2026
- Updated
- Oct 23, 2026
- Assigning CNA
- zdi
- Evidence observed
- Nov 4, 2026
Primary CVSS
nvd · CVSS 3.0
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 49.8%
- Model date
- Nov 4, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
- CVE-2026-92208_remote_mDNS_overflowInformational
Advisory write-up for CVE-2026-92208, a heap-based buffer overflow in NoMachine's mDNS component enabling unauthenticated network-adjacent remote code execution.
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