CVE-2026-21784— HCL IntelliOps Event Management is affected by multiple security vulnerabilities.
Quick assessment
Affected
HCL Software IEM
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.
HCL IntelliOps 事件管理（IEM）存在缺失或不安全的跨源安全标头问题。该问题使得应用程序的环境和资源容易受到未经授权的外部交互以及潜在的利用攻击。
Possible ATT&CK Techniques 1 AI
T1557 · Adversary-in-the-MiddleAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| HCL Software | IEM | v1.4.0 |
affected |
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I. Basic Information for CVE-2026-21784
Vulnerability Information
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Vulnerability Title
HCL IntelliOps Event Management is affected by multiple security vulnerabilities.
Source: CVE Program / CVE List V5
Vulnerability Description
HCL IntelliOps Event Management (IEM) is affected by missing or insecure Cross-Origin Security headers. This issue makes the application's environment and resources susceptible to unauthorized external interaction and potential exploitation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| HCL Software | IEM | v1.4.0 | - |
|
II. Public POCs for CVE-2026-21784
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-21784 (1)
Same Patch Batch · HCL Software · 2026-08-20 · 5 CVEs total
| CVE-2025-62299 | 6.6 MEDIUM | HCL IntelliOps Event Management is affected by multiple security vulnerabilities. |
| CVE-2025-62300 | 5.9 MEDIUM | HCL IntelliOps Event Management is affected by multiple security vulnerabilities. |
| CVE-2025-62307 | 5.4 MEDIUM | HCL IntelliOps Event Management is affected by multiple security vulnerabilities. |
| CVE-2025-62306 | 5.0 MEDIUM | HCL IntelliOps Event Management is affected by multiple security vulnerabilities. |
IV. Related Vulnerabilities
Same product: IEM
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CVE-2025-62299
HCL IntelliOps Event Management is affected by multiple secu -
CVE-2025-62300
HCL IntelliOps Event Management is affected by multiple secu -
CVE-2025-62306
HCL IntelliOps Event Management is affected by multiple secu -
CVE-2025-62307
HCL IntelliOps Event Management is affected by multiple secu -
CVE-2025-0253
HCL IEM is affected by a cookie attribute not set vulnerabil
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CVE-2025-62299
HCL IntelliOps Event Management is affected by multiple secu -
CVE-2025-62300
HCL IntelliOps Event Management is affected by multiple secu -
CVE-2025-62306
HCL IntelliOps Event Management is affected by multiple secu -
CVE-2025-62307
HCL IntelliOps Event Management is affected by multiple secu -
CVE-2026-21832
HCL AION is affected by multiple security vulnerabilities.
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V. Comments for CVE-2026-21784
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