PT-2026-121737

CVE-2026-114549

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Published

2026-10-22

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Updated

2026-11-04

Description by

CVSS 3.1
9.8
Critical
MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions NoMachine nxwebrunner (affected versions not specified)
Description A heap-based buffer overflow exists in the web service that listens on TCP port 4443 by default. The issue occurs because the service fails to properly validate the length of user-supplied data before copying it to a heap-based buffer. A remote attacker can exploit this flaw without authentication to execute arbitrary code in the context of the service account.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Impacts
Researchers
Vendors
Affected products
Related identifiers
ZDI-26-786
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