CVE-2026-3631— Buffer Over-read DoS Vulnerability in COMMGR2
Quick assessment
Affected
DeltaWW COMMGR2
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.
Delta Electronics COMMGR2是中国台达电子（Delta Electronics）公司的一个自动化设备通信管理软件。 Delta Electronics COMMGR2存在安全漏洞，该漏洞源于存在缓冲区过度读取，可能导致拒绝服务。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-3631
Vulnerability Information
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Vulnerability Title
Buffer Over-read DoS Vulnerability in COMMGR2
Source: CVE Program / CVE List V5
Vulnerability Description
Delta Electronics COMMGR2 has
Buffer Over-read DoS vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Delta Electronics COMMGR2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Delta Electronics COMMGR2是中国台达电子（Delta Electronics）公司的一个自动化设备通信管理软件。 Delta Electronics COMMGR2存在安全漏洞，该漏洞源于存在缓冲区过度读取，可能导致拒绝服务。
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
II. Public POCs for CVE-2026-3631
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-3631 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-3631
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