CVE-2026-56454 HCL Software CVE debrief

Who should care

Organizations using HCL DFXAnalytics, operators, platform administrators, vulnerability management teams, and security teams should assess their exposure to this vulnerability and take steps to remediate it. They should review and update cryptographic configurations, disable support for TLS 1.0 and TLS 1.1, and enable support for TLS 1.2 and TLS 1.3.

Technical summary

HCL DFXAnalytics is affected by a Deprecated Protocol vulnerability due to the use of TLS 1.0 and TLS 1.1. These legacy protocols contain numerous cryptographic design flaws that expose data to interception and decryption. To remediate this risk, the application must disable all support for TLS 1.0 and TLS 1.1, and exclusively enable support for secure protocols, specifically TLS 1.2 and TLS 1.3. This requires a thorough review of cryptographic configurations and updates to ensure secure communication.

Defensive priority

Medium priority given the CVSS score of 5.9 and the potential for data interception and decryption.

Recommended defensive actions

• Disable support for TLS 1.0 and TLS 1.1
• Enable support for TLS 1.2 and TLS 1.3
• Review and update cryptographic configurations
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further investigation and verification are necessary to fully understand the scope and impact of this vulnerability. Evidence is limited, and defenders should verify affected product deployments, review official advisories, and track exceptions. The use of TLS 1.0 and TLS 1.1 poses significant risks, and defenders must ensure that these protocols are disabled.

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.