TI-2026-40794 Aliases CVE-2026-56455 GHSA-c4fr-5qh5-c6fh

Stack-based buffer overflow in HCL Software DFXAnalytics

LOW 39CWE-121Published 2026-07-16 · Updated 2026-07-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00458 39th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
HCL Software	DFXAnalytics	up to 3.0	—	No fix listed	CNA

DFXAnalytics VendorHCL Software Affected up to 3.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:hcltech:dfxanalytics::::::::	up to 3.0	Vulnerable	HCL Software

cpe:2.3:a:hcltech:dfxanalytics:*:*:*:*:*:*:*:* Versions up to 3.0 Vulnerable ·HCL Software

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-56455
2026-10-03 Alias added: GHSA-c4fr-5qh5-c6fh

References

Advisory 1

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0131787

TI-2026-40792 Authentication bypass by capture-replay in HCL Software DFXAnalytics CVSS 3.1CRITICAL 9.8
TI-2025-37286 HCL DFXAnalytics is affected by an Insecure Security Header configuration vulnerability CVSS 3.1CRITICAL 9.8
TI-2025-37287 Cleartext transmission of sensitive information in HCL DFXAnalytics CVSS 3.1CRITICAL 9.1
TI-2026-27302 Information disclosure in HCL Software DFXAnalytics CVSS 3.1HIGH 8.2
TI-2026-40793 Broken or risky cryptographic algorithm in HCL Software DFXAnalytics CVSS 3.1HIGH 7.5
TI-2025-23100 Cross-site scripting in HCL DFXAnalytics CVSS 3.1MEDIUM 6.1

See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences