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PatchSiren cyber security CVE debrief

CVE-2026-56582 HCLSoftware CVE debrief

CVE-2026-56582 involves HCL MyCloud 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 CVE record was published on 2026-07-21T18:17:02.170Z and has not been modified since then. This vulnerability has a CVSS score of 3.1 and a severity of LOW. Users of HCL MyCloud should review and apply patches to mitigate the SSL/TLS LUCKY13 Vulnerability.

Vendor
HCLSoftware
Product
MyCloud
CVSS
LOW 3.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-21
Original CVE updated
2026-07-22
Advisory published
2026-07-21
Advisory updated
2026-07-22

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.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-21T18:17:02.170Z and has not been modified since then.