Skip to main content

Nomachine CVE-2017-12763

HIGH
Incorrect Default Permissions (CWE-276)
2017-08-29 cve@mitre.org
8.8
CVSS 3.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V13 - Configuration Default permission hardening
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 5.07%.

Exploit ScenarioDerived

A remote attacker could access resources due to overly permissive default settings by sending crafted requests to the affected application.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 5.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

An unspecified server utility in NoMachine before 5.3.10 on Mac OS X and Linux allows authenticated users to gain privileges by gaining access to local files. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Set restrictive default permissions, follow principle of least privilege, review defaults during deployment.

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 as Incorrect Default Permissions (CWE-276), which allows attackers to access resources due to overly permissive default settings. An unspecified server utility in NoMachine before 5.3.10 on Mac OS X and Linux allows authenticated users to gain privileges by gaining access to local files. Affected products include: Nomachine. Version information: before 5.3.10.

Know when Nomachine gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 8.8 HIGH
AV:N/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
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

An unspecified server utility in NoMachine before 5.3.10 on Mac OS X and Linux allows authenticated users to gain privileges by gaining access to local files.

Threat Intelligence Overview

EPSS Score
5.1%
Top 10% exploitable
Exploit
POC
Public exploit code exists
Data Quality
4 sources
Confidence: Medium

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 Yes
EPSS 5.1%
Patch available Yes
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
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

69
Low Medium High Critical
KEV: 0
EPSS: +5
CVSS: +44
PoC: +20
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.

Affected Products (CPE)CVE.org

cpe:2.3:a:nomachine:nomachine:*:*:*:*:*:*:*:*
CVE-2023-39107 CRITICAL POC
9.1 Aug 04

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
8.8 Dec 07

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

CVE-2021-42980 HIGH POC
8.8 Dec 07

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

CVE-2021-42979 HIGH POC
8.8 Dec 07

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

CVE-2021-42977 HIGH POC
8.8 Dec 07

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

CVE-2022-34043 HIGH POC
7.3 Jun 29

Incorrect permissions for the folder C:\ProgramData\NoMachine\var\uninstall of Nomachine v7.9.2 allows attackers to perf

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy