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Nomachine CVE-2024-7253

HIGH
Uncontrolled Search Path Element (CWE-427)
2024-11-22 zdi-disclosures@trendmicro.com
7.8
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V13 - Configuration Search path element control
Impact

CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required.

Exploit ScenarioDerived

Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAI

NoMachine Uncontrolled Search Path Element Local Privilege Escalation Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-427. NoMachine Uncontrolled Search Path Element Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within nxnode.exe. The process loads a library from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. . Was ZDI-CAN-24039. Affected products include: Nomachine.

Severity by source

NVD PRIMARY 7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

NoMachine Uncontrolled Search Path Element Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within nxnode.exe. The process loads a library from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

. Was ZDI-CAN-24039.

Threat Intelligence Overview

EPSS Score
0.4%
Top 73% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:a:nomachine:nomachine:*:*:*:*:*:*:*:*
cpe:2.3:a:nomachine:nomachine:*:*:*:*:*:*:*:*
CVE-2017-12763 HIGH POC
8.8 Aug 29

An unspecified server utility in NoMachine before 5.3.10 on Mac OS X and Linux allows authenticated users to gain privil

CVE-2023-39107 CRITICAL POC
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An arbitrary file overwrite vulnerability in NoMachine Free Edition and Enterprise Client for macOS before v8.8.1 allows

CVE-2021-42986 HIGH POC
8.8 Dec 07

NoMachine Enterprise Client is affected by Integer Overflow. Rated high severity (CVSS 8.8), this vulnerability is low a

CVE-2021-42983 HIGH POC
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NoMachine Enterprise Client is affected by Buffer Overflow. Rated high severity (CVSS 8.8), this vulnerability is low at

CVE-2021-42980 HIGH POC
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NoMachine Cloud Server is affected by Buffer Overflow. Rated high severity (CVSS 8.8), this vulnerability is low attack

CVE-2021-42979 HIGH POC
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NoMachine Cloud Server is affected by Integer Overflow. Rated high severity (CVSS 8.8), this vulnerability is low attack

CVE-2021-42977 HIGH POC
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NoMachine Enterprise Desktop is affected by Integer Overflow. Rated high severity (CVSS 8.8), this vulnerability is low

CVE-2021-42976 HIGH POC
8.8 Dec 07

NoMachine Enterprise Desktop is affected by Buffer Overflow. Rated high severity (CVSS 8.8), this vulnerability is low a

CVE-2021-42973 HIGH POC
8.8 Dec 07

NoMachine Server is affected by Integer Overflow. Rated high severity (CVSS 8.8), this vulnerability is low attack compl

CVE-2021-42972 HIGH POC
8.8 Dec 07

NoMachine Server is affected by Buffer Overflow. Rated high severity (CVSS 8.8), this vulnerability is low attack comple

CVE-2018-17980 HIGH POC
7.8 Oct 15

NoMachine before 5.3.27 and 6.x before 6.3.6 allows attackers to gain privileges via a Trojan horse wintab32.dll file lo

CVE-2018-6947 HIGH POC
7.8 Feb 28

An uninitialised stack variable in the nxfuse component that is part of the Open Source DokanFS library shipped with NoM

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