CVE-2026-21784 — MEDIUM (4.8)

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.

CVSS Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-200

References

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

FAQ

What is CVE-2026-21784?

CVE-2026-21784 is a vulnerability with a CVSS score of 4.8 (MEDIUM). 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 externa...

How severe is CVE-2026-21784?

CVE-2026-21784 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-21784?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.