CVE-2026-1772
Quick assessment
Affected
Hitachi Energy RTU500 series CMU firmware
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.
Hitachi Energy RTU500是日本日立制作所（Hitachi）公司的一系列工控组件。 Hitachi Energy RTU500存在安全漏洞，该漏洞源于非特权用户可以读取用户管理信息，可能导致信息泄露。
Possible ATT&CK Techniques 1 AI
T1528 · Steal Application Access Token
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I. Basic Information for CVE-2026-1772
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
RTU500 web interface: An unprivileged user can read user management information. The information cannot be accessed via the RTU500 web user interface but requires further tools like browser development utilities to access them without required privileges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分权限或特权的处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Hitachi Energy RTU500 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hitachi Energy RTU500是日本日立制作所（Hitachi）公司的一系列工控组件。 Hitachi Energy RTU500存在安全漏洞，该漏洞源于非特权用户可以读取用户管理信息，可能导致信息泄露。
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 |
|---|---|---|---|---|
| Hitachi Energy | RTU500 series CMU firmware | 12.7.1 ~ 12.7.7 | - |
|
II. Public POCs for CVE-2026-1772
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · Hitachi Energy · 2026-02-24 · 4 CVEs total
| CVE-2026-1773 | Hitachi Energy RTU500 安全漏洞 | |
| CVE-2026-2460 | Hitachi Energy Relion REB500 安全漏洞 | |
| CVE-2026-2459 | Hitachi Energy Relion REB500 安全漏洞 |
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V. Comments for CVE-2026-1772
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