Heap-based buffer overflow in NoMachine - CVE-2026-114549
Published: October 26, 2026
Vulnerability identifier: #VU157666
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-114549
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within nxwebrunner. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
NoMachine
How to mitigate CVE-2026-114549
Install updates from vendor's website.
NoMachine - addressed in versions 8.27.1, 9.9.6, 10.1.7