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CVE-2026-5434— Improper storage of sensitive information

Quick assessment

Affected
Honeywell International Inc. Control Network Module (CNM)
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.

Honeywell Control Network Module是美国Honeywell公司的一个面向工业自动化与过程控制系统的网络通信控制模块。 Honeywell Control Network Module存在安全漏洞，该漏洞源于将敏感信息插入到非预期目录，可能导致未经授权的数据访问。

CVSS 5.9 · Medium EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 1

VendorProduct Version RangeStatus
Honeywell International Inc. Control Network Module (CNM) 100.1≤ 110.2 affected
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I. Basic Information for CVE-2026-5434

Vulnerability Information
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Vulnerability Title
Improper storage of sensitive information
Source: CVE Program / CVE List V5
Vulnerability Description
Honeywell Control Network Module (CNM) contains insertion of sensitive information into an unintended directory. An attacker could exploit this vulnerability through probing system files, potentially resulting in unintended access to protected data. Honeywell recommends updating to the most recent version of this product, service or offering [200.1]. The CNM versions affected are from [100.1, 101.1, 110.1, and 110.2].
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
文件和路径信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Honeywell Control Network Module 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Honeywell Control Network Module是美国Honeywell公司的一个面向工业自动化与过程控制系统的网络通信控制模块。 Honeywell Control Network Module存在安全漏洞，该漏洞源于将敏感信息插入到非预期目录，可能导致未经授权的数据访问。
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

Vendor Product Affected Versions CPE Subscribe
Honeywell International Inc. Control Network Module (CNM) 100.1 ~ 110.2 -

II. Public POCs for CVE-2026-5434

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III. Intelligence Information for CVE-2026-5434

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Vendor Pages for CVE-2026-5434 (2)

IV. Related Vulnerabilities

Same product: Control Network Module (CNM)
Same vendor: Honeywell International Inc.
Same weakness: CWE-538

V. Comments for CVE-2026-5434

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