CVE-2026-11576
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk18th percentile - higher than 18% of all known CVEs
Summary
The security fix for CVE-2025-0728 in eclipse-threadx NetX Duo introduced a new vulnerability. The shared cleanup path in the HTTP server PUT process calls fx_file_close() even when the file was never opened, leading to undefined behavior, double-close issues, or memory corruption.
Risk Assessment
An attacker could exploit this vulnerability to cause a system crash or potentially remote code execution by sending a specially crafted PUT request to the HTTP server.
Recommendation
Immediately update the eclipse-threadx NetX Duo library to a version containing the correct fix that conditionally calls fx_file_close() only after a successful file open.
Original NVD description (English source)
The security fix for CVE-2025-0728 in eclipse-threadx NetX Duo refactors error handling in the HTTP server PUT process to use a shared cleanup label, but this unified cleanup path unconditionally calls fx_file_close() even when the file was never successfully opened. Multiple error branches jump to the shared cleanup label before any file open operation has occurred, causing fx_file_close() to operate on an uninitialized file handle, leading to undefined behavior, double-close issues, or memory corruption.