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PatchSiren cyber security CVE debrief

CVE-2026-21753 HCL Software CVE debrief

HCL Hive's weak software supply chain governance could lead to the inclusion of vulnerable, unmaintained, or malicious third-party dependencies within the application environment. This vulnerability affects defenders responsible for HCL Hive environments, security teams, and developers, who should assess exposure and prioritize verification of third-party dependencies. The CVE record and NVD entry provide details on the vulnerability, but additional information on affected versions and remediation is required.

Vendor
HCL Software
Product
Hive
CVSS
MEDIUM 4.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-25
Original CVE updated
2026-09-28
Advisory published
2026-08-25
Advisory updated
2026-09-28

Who should care

Defenders responsible for HCL Hive environments, security teams, and developers should assess exposure and prioritize verification of third-party dependencies.

Why it matters

Defenders should assess exposure and prioritize verification of third-party dependencies in HCL Hive environments to prevent potential security risks.

  • Verification of third-party dependencies in HCL Hive environments is required to prevent potential security risks
  • Assessing exposure of HCL Hive environments to vulnerable dependencies is necessary to prioritize remediation efforts

Technical summary

HCL Hive is affected by weak software supply chain governance, which could lead to the inclusion of vulnerable, unmaintained, or malicious third-party dependencies within the application environment. This vulnerability affects defenders responsible for HCL Hive environments, security teams, and developers, who should assess exposure and prioritize verification of third-party dependencies.

Defensive priority

Defenders should assess exposure and prioritize verification of third-party dependencies in HCL Hive environments.

Recommended defensive actions

  • Assess exposure of HCL Hive environments to vulnerable third-party dependencies
  • Verify third-party dependencies in HCL Hive environments
  • Prioritize remediation of vulnerable dependencies

Evidence notes

The CVE record and NVD entry provide details on the vulnerability. However, additional information on affected versions, remediation, and potential security risks is required. Defenders should verify third-party dependencies in HCL Hive environments to prevent potential security risks. The current information available does not provide explicit evidence of the vulnerability's impact, and further verification is necessary.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-21753 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-21753

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

  • CVE-2026-21753 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-21753

    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.