CVE-2026-102727

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BaseFortify

Publication date: 2026-09-29

Last updated on: 2026-11-04

Assigner: Eclipse Foundation

Description

In Eclipse ThreadX NetX Duo versions 6.0 through 6.5.2.202603a, the FTP server accepts the first connection to a passive data port without checking that it comes from the client that requested passive mode. An unauthenticated network attacker who connects to the predictable port first receives the file an authenticated user downloads, or supplies the content of the file the user uploads.

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Meta Information

Published

2026-09-29

Last Modified

2026-11-04

Generated

2026-11-08

AI Q&A

2026-09-29

EPSS Evaluated

2026-11-07

NVD

CVE-2026-102727

EUVD

EUVD-2026-89199

Affected Vendors & Products

Vendor	Product	Version / Range
Eclipse Foundation	NetX Duo	0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-923	The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.

Attack-Flow Graph

Executive Summary

This vulnerability involves FTP passive data connections not being properly bound to the authenticated control peer. This means an attacker could potentially hijack or intercept data transfers that should be secure between the client and server.

Impact Analysis

An attacker might intercept sensitive data like files or credentials during FTP transfers. This could lead to data theft, unauthorized access, or further attacks on systems relying on FTP for file transfers.

Compliance Impact

The vulnerability involves FTP passive data connections not being bound to the authenticated control peer, which could allow unauthorized data transfers. This may impact compliance with GDPR by potentially enabling unauthorized access to personal data during transmission, and with HIPAA by risking exposure of protected health information during file transfers.

Mitigation Strategies

Disable FTP passive mode or restrict passive data connections to authenticated peers. Update FTP server software to the latest version. Monitor network traffic for unauthorized data connections.

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