PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-56578 HCLSoftware CVE debrief

CVE-2026-56578 is a low-severity vulnerability affecting HCL MyCloud, a cloud-based solution from HCLTech. The vulnerability is related to Server Version Disclosure, which may help attackers identify and exploit known vulnerabilities affecting the disclosed software versions. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 2.2, indicating a relatively low severity.

Vendor
HCLSoftware
Product
MyCloud
CVSS
LOW 2.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-21
Original CVE updated
2026-08-03
Advisory published
2026-07-21
Advisory updated
2026-08-03

Who should care

Security teams and administrators responsible for HCL MyCloud solutions should be aware of this vulnerability and take necessary precautions to ensure their systems are up-to-date and secure.

Technical summary

The vulnerability is caused by the disclosure of server version information in HCL MyCloud. This information disclosure may aid attackers in identifying and exploiting known vulnerabilities in the affected software versions. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N, indicating a low severity impact.

Defensive priority

Low

Recommended defensive actions

  • Review and apply vendor-provided patches or updates to address the vulnerability.
  • Ensure HCL MyCloud solutions are running with the latest software versions.
  • Monitor system logs for potential exploitation attempts.
  • Implement additional security controls, such as web application firewalls, to detect and prevent attacks.

Evidence notes

The CVE record was published on 2026-07-21T18:17:01.667Z and was last modified on 2026-07-22T19:17:06.603Z. The NVD entry is currently Analyzed. The vulnerability is described in the CVE record and the NVD detail page.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-56578 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-56578

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-56578 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-56578

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

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.