Communication interception via missing HSTS enforcement
Published Jul 21, 2026 · Updated Jul 21, 2026
Missing HTTP Strict Transport Security enforcement in HCL IntelliOps Event Management 1.1 allows remote attackers to intercept secure communications. HCL has not identified the affected HTTP endpoint or disclosed whether the server omits the Strict-Transport-Security response header or emits an ineffective policy. Exploitation requires a man-in-the-middle network position and is limited to intercepting communications, with no reported data modification or service interruption.
Summary
What happened
Missing HTTP Strict Transport Security enforcement in HCL IntelliOps Event Management 1.1 allows remote attackers to intercept secure communications. HCL has not identified the affected HTTP endpoint or disclosed whether the server omits the Strict-Transport-Security response header or emits an ineffective policy. Exploitation requires a man-in-the-middle network position and is limited to intercepting communications, with no reported data modification or service interruption.
The record
- CVE
- CVE-2026-56587
- Published
- Jul 21, 2026
- Updated
- Jul 21, 2026
- Vendor
- HCLSoftware
- Product
- HCL IntelliOps Event Management
- Classifications
- CWE-523, CAPEC-102, T1040
- Attack vector
- network
- Privileges
- unauthenticated
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?
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- Affected versionversion=1.1
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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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