NoMachine up to 8.23.1/9.5.6 argument injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in NoMachine up to 8.23.1/9.5.6 and classified as critical. Affected by this issue is some unknown functionality. The manipulation results in argument injection. This vulnerability is identified as CVE-2026-53694. The attack is only possible with local access. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in NoMachine up to 8.23.1/9.5.6. Affected is an unknown code. The manipulation with an unknown input leads to a argument injection vulnerability. CWE is classifying the issue as CWE-88. The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability in Nomachine allows Argument Injection.This issue affects Nomachine: before 9.5.7, before 8.23.2.

The weakness was released by Vonmetz Tobias. The advisory is available at kb.nomachine.com. This vulnerability is traded as CVE-2026-53694 since 06/10/2026. The exploitability is told to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

Upgrading to version 8.23.2 or 9.5.7 eliminates this vulnerability.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Argument injection
CWE: CWE-88 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: NoMachine 8.23.2/9.5.7

Timelineinfo

06/10/2026 Advisory disclosed
06/10/2026 +0 days CVE reserved
06/10/2026 +0 days VulDB entry created
06/10/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: kb.nomachine.com
Researcher: Vonmetz Tobias
Status: Confirmed

CVE: CVE-2026-53694 (🔒)
GCVE (CVE): GCVE-0-2026-53694
GCVE (VulDB): GCVE-100-370206

Entryinfo

Created: 06/10/2026 19:07
Changes: 06/10/2026 19:07 (66)
Complete: 🔍
Cache ID: 216::103

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