Medium severity · published Jul 21, 2026
CVE-2026-56586
HCL IEM was affected with X-Content-Type-Options Header Missing
4.2
CVSS
0.2%
EPSS
No
On KEV
Description
HCL IEM was affected with X-Content-Type-Options Header Missing. It may enable attackers to perform SSL stripping or man-in-the-middle attacks and intercept sensitive data.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IE
IntelliOps Event Management · HCLSoftware
1.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56586
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-56586
Vendor Advisory
https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132378
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5.3
CVE-2026-56584
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4.3
CVE-2026-56585
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3.7
CVE-2026-56587
HCL IEM was affected with Strict transport security not enforced