Executive brief
HCL DFXAnalytics, a data analysis platform, is vulnerable to a security flaw that could allow an attacker to crash the system. By sending specially crafted, oversized data to the application, an attacker can cause the service to become unresponsive or shut down entirely. This disrupts business operations and prevents legitimate users from accessing the analytics tools.
Technical details
A stack-based buffer overflow (CWE-121) exists in HCL DFXAnalytics versions 3.0 and below. The vulnerability is caused by insufficient validation of input lengths when processing data, allowing an attacker to overwrite memory containers. This is a network-reachable exploit that requires no authentication or user interaction. Successful exploitation results in a Denial of Service (DoS) condition where the application crashes or becomes unresponsive. Mitigation requires implementing comprehensive input length checks on both the client and server sides.
Affected products
- HCL Software DFXAnalytics 3.0 and below
Timeline
- 2026-07-16: advisory: Initial advisory published by HCL Software and NVD