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MEDIUM

CVE-2026-21784

CVE-2026-21784 — HCL IntelliOps Event Management is affected by multiple security vulnerabilities.

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.

Published Updated Sources: cvelistV5, HCL

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.

Exploitation

Unreported

no source claims exploitation

EPSS

0%

chance of exploitation in 30 days

Affects

hcl software

iem

CVSS base

4.8

MEDIUM

Affected scope

The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.

Vendors (1)

hcl software

Products (1)

iem

Every base score collected

Sources score independently and disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactSource
4.8CVSS 3.1MEDIUM——cvelistV5

Weakness & attack patterns

  • CWE-200

Attack patterns reported against this CVE. The ATT&CK techniques below are inferred from its weakness class.

  • T1562.003Impair Defenses: Impair Command History Logging
  • T1574.006Hijack Execution Flow: Dynamic Linker Hijacking
  • T1574.007Hijack Execution Flow: Path Interception by PATH Environment Variable

References

1 on the record

Elsewhere on this site

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.