CVE-2026-102728

High

Description

Two client-side TLS/DTLS handshake parsers in NetX Secure read fields from a server-supplied message before validating that the message is long enough to contain them. Both are bounded out-of-bounds reads on a remotely reachable path, both are reached from a TLS or DTLS client connecting to a malicious or malformed server, and both have the same shape: the bounds check exists and returns the correct status, but it runs after the read it is meant to guard.

SeverityHigh
CVSS7.5
Exploit probability—
ProductNetX Duo
PublishedSep 29, 2026
First seenSep 29, 2026
Weakness typeCWE-126CWE-126

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Eclipse Foundation NetX Duov ≤ 6.5.1.202602—

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CVE-2026-102728 · NetX Duo · Dark Radar