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CVE-2026-34493

Quick assessment

Affected
Johnson Controls EasyIO FS32
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.

Johnson Controls EasyIO FS32 中的片上调试接口存在漏洞，攻击者可能从公共资源位置收集数据。此问题影响 EasyIO FS32 3.3b63 之前的版本。

CVSS 7.2 · High

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2026-34493

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
- On-Chip Debug Interface vulnerability in Johnson Controls EasyIO FS32 allows Collect Data from Common Resource Locations. This issue affects EasyIO FS32: before 3.3b63.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1191
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Johnson Controls EasyIO FS32 0 ~ 3.3b63 -

II. Public POCs for CVE-2026-34493

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III. Intelligence Information for CVE-2026-34493

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Vendor Pages for CVE-2026-34493 (1)

Same Patch Batch · Johnson Controls · 2026-10-01 · 12 CVEs total

CVE-2026-71449 9.3 CRITICAL Johnson Controls EasyIO FS32 硬编码密钥漏洞
CVE-2026-64893 7.3 HIGH Johnson Controls EasyIO NEO <3.3b25 明文传输漏洞
CVE-2026-71452 7.2 HIGH Johnson Controls EasyIO FS32 3.0b63以下命令注入漏洞
CVE-2026-34494 7.2 HIGH Johnson Controls Neo Series MVP2 (<3.3b63) On-Chip调试接口数据收集漏洞
CVE-2026-64892 6.3 MEDIUM Johnson Controls Easy IO Neo 3.3b63前敏感信息泄露
CVE-2026-27872 5.6 MEDIUM EasyIO FG
CVE-2026-71451 5.6 MEDIUM Johnson Controls EasyIO FS32 < 3.0b63 命令注入漏洞
CVE-2026-71453 5.6 MEDIUM Johnson Controls EasyIO FS32 (<3.0b63) 路径遍历漏洞
CVE-2026-71448 5.6 MEDIUM EasyIO FS32 <3.0b63 不安全资源初始化认证滥用漏洞
CVE-2026-27873 5.6 MEDIUM Johnson Controls EasyIO FG <2.0b52 硬编码凭据漏洞
CVE-2026-27874 5.0 MEDIUM EasyIO FS32硬编码凭据漏洞

IV. Related Vulnerabilities

Same product: EasyIO FS32
Same vendor: Johnson Controls
Same weakness: CWE-1191

V. Comments for CVE-2026-34493

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