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I. Basic Information for CVE-2026-4436
Vulnerability Information

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Vulnerability Title
GPL Odorizers GPL750 Missing Authentication for Critical Function
Source: NVD (National Vulnerability Database)
Vulnerability Description
A low-privileged remote attacker can send Modbus packets to manipulate register values that are inputs to the odorant injection logic such that too much or too little odorant is injected into a gas line.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
GPL Odorizers GPL 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GPL Odorizers GPL是美国GPL公司的一系列燃气加臭设备与气体处理控制系统。 GPL Odorizers GPL存在访问控制错误漏洞,该漏洞源于低权限远程攻击者可发送Modbus数据包操纵寄存器值,可能导致气体管线中臭剂注入过多或过少。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
GPL OdorizersGPL750 (XL4) v1.0 ~ v6.0 -
GPL OdorizersGPL750 (XL4 Prime) v4.0 ~ v6.0 -
GPL OdorizersGPL Odorizers GPL750 (XL7) v13.0 ~ v20.0 -
GPL OdorizersGPL Odorizers GPL750 (XL7 Prime) v18.4 ~ v20.0 -
II. Public POCs for CVE-2026-4436
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III. Intelligence Information for CVE-2026-4436
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IV. Related Vulnerabilities
V. Comments for CVE-2026-4436

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