Heap-based Buffer Overflow Vulnerability in NoMachine Software
CVE-2026-92208

8.8HIGH

Key Information:

Vendor

Nomachine

Status
Nomachine
Vendor
CVE Published:
21 October 2026

What is CVE-2026-92208?

The NoMachine software contains a vulnerability in the parsing of mDNS resource records, which can be exploited by network-adjacent attackers to execute arbitrary code. This exploit does not require authentication, posing a significant risk to user systems. The flaw arises from insufficient validation of the length of user-supplied data before it is copied to a heap-based buffer, allowing an attacker to potentially execute code within the context of the service account.

Affected Version(s)

NoMachine 9.8.2_1

References

https://www.zerodayinitiative.com/advisories/ZDI-26-710/
x_research-advisory

CVSS V3.0

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.