CVE-2026-56455

Analyzed Analyzed - Analysis Complete

Buffer Overflow in HCL DFXAnalytics Leads to DoS

Publication date: 2026-07-16

Last updated on: 2026-07-17

Assigner: HCL Software

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.

CVSS Scores

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Meta Information

Published

2026-07-16

Last Modified

2026-07-17

Generated

2026-08-05

AI Q&A

2026-07-16

EPSS Evaluated

2026-08-04

NVD

CVE-2026-56455

EUVD

EUVD-2026-44923

Affected Vendors & Products

Vendor	Product	Version / Range
hcltech	dfxanalytics	to 3.0 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-121	A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

Attack-Flow Graph

Executive Summary

HCL DFXAnalytics has a Buffer Overflow vulnerability that can cause a Denial of Service (DoS). The application does not properly validate input sizes, allowing attackers to send excessive data into memory containers. This can crash the system or make it unresponsive.

Detection Guidance

This vulnerability involves a buffer overflow in HCL DFXAnalytics due to improper input validation. Detection requires monitoring for crashes or unresponsive behavior in the application. Check application logs for memory errors or segmentation faults. Use system monitoring tools like 'top', 'htop', or 'ps' to observe abnormal CPU or memory usage by the DFXAnalytics process.

Impact Analysis

This vulnerability could allow attackers to disrupt services by causing crashes or unresponsiveness in systems running HCL DFXAnalytics. It may lead to downtime, data unavailability, or degraded performance for affected applications.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by causing system instability or crashes due to Denial of Service conditions. Unauthorized disruptions may lead to data processing interruptions, affecting availability requirements under these regulations.

Mitigation Strategies

Implement comprehensive input length checks on both client and server sides to validate data sizes before processing. Ensure the application properly handles memory allocation to prevent buffer overflows that could lead to Denial of Service.

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