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CVE-2026-92209— NoMachine Redis Improper Authentication Local Privilege Escalation Vulnerability

Quick assessment

Affected
NoMachine NoMachine
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NoMachine Redis 身份验证不当导致本地权限提升漏洞。该漏洞允许本地攻击者在受影响的 NoMachine 安装中提升权限。攻击者必须首先在目标系统上获得执行低权限代码的能力，才能利用此漏洞。 具体缺陷存在于控制对 Redis 数据库访问的身份验证机制中。该问题源于在生成凭证时使用的熵不足。攻击者可利用此漏洞提升权限，并在服务账户的上下文中执行任意代码。此漏洞编号为 ZDI-CAN-30984。

AI Predicted 7.8 Difficulty: Moderate

Affected Version Matrix 1

VendorProduct Version RangeStatus
NoMachine NoMachine 9.7.3 affected
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I. Basic Information for CVE-2026-92209

Vulnerability Information
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Vulnerability Title
NoMachine Redis Improper Authentication Local Privilege Escalation Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
NoMachine Redis Improper Authentication 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 the authentication mechanism controlling access to the Redis database. The issue results from using insufficient entropy in the generation of credentials. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the service account. Was ZDI-CAN-30984.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
信息熵不充分
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
NoMachine NoMachine 9.7.3 -

II. Public POCs for CVE-2026-92209

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III. Intelligence Information for CVE-2026-92209

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Other References for CVE-2026-92209 (1)

Same Patch Batch · NoMachine · 2026-10-21 · 4 CVEs total

CVE-2026-92208 NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2026-92210 NoMachine nxhtd Server-Side Request Forgery Information Disclosure Vulnerability
CVE-2026-111184 NoMachine Named Pipe Incorrect Permission Assignment Local Privilege Escalation Vulnerabil

IV. Related Vulnerabilities

Same product: NoMachine
Same vendor: NoMachine
Same weakness: CWE-331

V. Comments for CVE-2026-92209

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