Limited data disclosure through vulnerable IIS component
Published Jul 21, 2026 · Updated Jul 21, 2026
Use of a known-vulnerable IIS component in HCL MyCloud 10.8.2 allows remote authenticated users to read limited data over a network. HCL identifies the IIS server component but does not disclose the underlying IIS vulnerability, affected IIS build, or operation on untrusted input. Exploitation requires high privileges and difficult conditions; the published impact is limited confidentiality loss with no integrity or availability effect.
Summary
What happened
Use of a known-vulnerable IIS component in HCL MyCloud 10.8.2 allows remote authenticated users to read limited data over a network. HCL identifies the IIS server component but does not disclose the underlying IIS vulnerability, affected IIS build, or operation on untrusted input. Exploitation requires high privileges and difficult conditions; the published impact is limited confidentiality loss with no integrity or availability effect.
The record
- CVE
- CVE-2026-56580
- Published
- Jul 21, 2026
- Updated
- Jul 21, 2026
- Vendor
- HCLSoftware
- Product
- HCL MyCloud
- Classifications
- CWE-1104
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jul 21, 2026CVE publishedPublication date reported by the CVE source.
- Jul 21, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.8.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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