CVE-2026-56455

HCL DFXAnalytics is affected by a Buffer Overflow vulnerability that can lead to a Denial of Service (DoS).

Published Jul 16, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
HCL DFXAnalytics is affected by a Buffer Overflow vulnerability that can lead to a Denial of Service (DoS). The application fails to properly validate input sizes, allowing an attacker to pass an excessive amount of information into a memory container, which can cause the system to crash or become unresponsive. To mitigate this flaw, comprehensive input length checks must be implemented and enforced on both the client and server sides.

Analysis

AI-generated

Technical impact

The vulnerability is a classic buffer overflow (CWE‑121) caused by inadequate validation of input sizes in HCL DFXAnalytics. When an attacker supplies data larger than the application expects, the overflowing payload writes beyond the bounds of a memory buffer, corrupting adjacent memory and eventually causing the process to crash or become unresponsive. This results in a denial of service that undermines the availability of the affected service.

Affected Systems

The impacted product is HCL Software DFXAnalytics. The advisory does not list specific affected versions, so any deployment of this application—particularly those still running the current release described in the CVE—should be considered vulnerable until a patch or mitigation is applied.

Risk and Exploitability

A CVSS score of 5.3 indicates moderate severity, while an EPSS score of < 1 % signals a very low probability of exploitation. Based on the description, it is inferred that the flaw can be triggered remotely by sending a crafted payload over a network interface, such as a web service or API endpoint. Because the vulnerability leads only to a crash with no code execution, the direct impact is limited to service downtime, though repeated attacks could disrupt business continuity. This issue is not listed in the CISA KEV catalog.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply any HCL Software patch or upgrade to a DFXAnalytics release that fixes the buffer overflow.
  • Implement strict input length validation on all client and server interfaces to reject data that exceeds the defined limits before processing.
  • Enable monitoring of the application and configure alerts for abnormal memory usage, sudden process termination or service restarts to detect and mitigate ongoing DoS attempts.

Generated by OpenCVE AI on July 31, 2026 at 01:57 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Hcltech
Hcltech dfxanalytics
Vendors & Products Hcltech
Hcltech dfxanalytics
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description HCL DFXAnalytics is affected by a Buffer Overflow vulnerability that can lead to a Denial of Service (DoS). The application fails to properly validate input sizes, allowing an attacker to pass an excessive amount of information into a memory container, which can cause the system to crash or become unresponsive. To mitigate this flaw, comprehensive input length checks must be implemented and enforced on both the client and server sides.
Title HCL DFXAnalytics is affected by a Buffer Overflow vulnerability that can lead to a Denial of Service (DoS).
Weaknesses CWE-121
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses
  • CWE-121

    Stack-based Buffer Overflow

Sources

Status
PUBLISHED
Assigner
HCL
Published
Updated
Jul 16, 2026, 1:35 PM
Reserved
Jun 22, 2026, 1:38 PM
Status
Analyzed
Published
Jul 16, 2026, 2:16 PM
Modified
Oct 24, 2026, 9:10 PM