CVE-2026-56582 HCLSoftware CVE debrief

Who should care

Users of HCL MyCloud, security teams, and operators should review and apply patches to mitigate the SSL/TLS LUCKY13 Vulnerability. This vulnerability affects HCL MyCloud deployments and has a CVSS score of 3.1 with a severity of LOW.

Technical summary

HCL MyCloud was affected by the SSL/TLS LUCKY13 Vulnerability. An attacker may exploit this vulnerability to decrypt sensitive information through a TLS/SSL padding oracle attack. The vulnerability has a CVSS score of 3.1 and a severity of LOW. This vulnerability affects HCL MyCloud deployments. Defenders should focus on patching and mitigating the vulnerability.

Defensive priority

Apply patches to mitigate the SSL/TLS LUCKY13 Vulnerability in HCL MyCloud. Verify HCL MyCloud patch status and configurations.

Recommended defensive actions

• Apply patches to mitigate the SSL/TLS LUCKY13 Vulnerability in HCL MyCloud.
• Review HCL MyCloud configurations to ensure they are secure.
• Monitor HCL MyCloud for suspicious activity.
• Verify HCL MyCloud patch status and configurations.
• Review compensating controls for exposed systems while remediation is scheduled and verified.

Evidence notes

The CVE record was published on 2026-07-21T18:17:02.170Z and has not been modified since then. The NVD entry is currently Analyzed. Evidence is limited to CVE and NVD information. Defenders should verify HCL MyCloud configurations and patch status.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.