CVE-2026-21784

HCL IntelliOps Event Management is affected by multiple security vulnerabilities.

Published Aug 20, 2026 CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed

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.

Analysis

Technical impact

Missing or insecure Cross‑Origin Security headers allow the application’s environment and resources to be accessed by unauthenticated or malicious domains. This vulnerability can let an attacker issue requests to the application from unauthorized origins, potentially reading sensitive data or manipulating state. The flaw is a typical confidentiality issue (CWE‑200).

Affected Systems

HCL Software’s IntelliOps Event Management (IEM) product. No specific version data is provided, so all deployments of IEM remain potentially vulnerable.

Risk and Exploitability

The CVSS score of 4.8 indicates a moderate risk level. No EPSS data is available, and the vulnerability is not listed in CISA’s KEV. Attacking the flaw requires only the ability to craft a cross‑origin request, making external exploitation plausible wherever the IEM interface is exposed over the Internet. Given the lack of mitigation, this vulnerability could be leveraged wherever the application accepts HTTP requests from external clients.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

HCL Software

IEM

unaffected

Version	Status	Constraints
`v1.4.0`	affected	—

No data.

Vendor Product Versions

Hcl Software

Iem

Version	Status	Scheme	Platform
`v1.4.0`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Apply the latest patch or update to HCL IntelliOps Event Management released by HCL.
Configure or enforce proper Cross‑Origin Security headers such as Content‑Security‑Policy, X‑Frame‑Options, and/or Access‑Control‑Allow‑Origin to restrict allowed origins.
Validate implementation with an automated security scanner or manual header inspection.

Generated by OpenCVE AI on August 20, 2026 at 22:02 UTC.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.242% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132456

History

Aug 27, 2026 5:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Aug 21, 2026 12:30 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Hcl Software Hcl Software iem
Vendors & Products		Hcl Software Hcl Software iem

Aug 20, 2026 12:30 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
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.
Title		HCL IntelliOps Event Management is affected by multiple security vulnerabilities.
Weaknesses		CWE-200
References		https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132456
Metrics		cvssV3_1 `{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'}`