TI-2026-65492 Aliases CVE-2026-102759 GHSA-q2vr-5v2w-fjr2

NetX Secure TLS accepts an empty application-data record without verifying its message…

LOW 27CWE-354Published 2026-09-29 · Updated 2026-09-29

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · Low · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

NetX Secure TLS accepts an empty application-data record without verifying its message authentication code. In `_nx_secure_verify_mac`, a decrypted application record whose length equals the negotiated MAC size is treated as valid and returns success after advancing the receive sequence number. The received MAC is never generated or compared. Empty TLS application-data records are legal, and are commonly emitted by TLS 1.0 implementations as a BEAST mitigation.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00156 4th percentileScored 2026-11-07

Fix Fixed NetX Duo (Eclipse Foundation): 6.5.2.202603

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
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
Eclipse Foundation	NetX Duo	6.2.0 – 6.5.1.202602	6.5.2.202603	Patch available	CNA

NetX Duo VendorEclipse Foundation Affected 6.2.0 – 6.5.1.202602 Fixed in 6.5.2.202603 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:eclipse:threadx_netx_duo::::::::	—	—	Eclipse Foundation

cpe:2.3:a:eclipse:threadx_netx_duo:*:*:*:*:*:*:*:* Versions — — ·Eclipse Foundation

Remediation

Fix · CNA NetX Duo (Eclipse Foundation) Fixed in 6.5.2.202603

Timeline

2026-10-02 Threatist record created from CVE-2026-102759
2026-10-03 Alias added: GHSA-q2vr-5v2w-fjr2

References

Other 1

https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-m7j3-vh25-xc8p

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TI-2026-06514 Path traversal in Eclipse BaSyx CVSS 3.1CRITICAL 10.0
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See all 466 →

Sources

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