CVE-2026-102759
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.
CVE-2026-102759
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-102759
NetX Duo
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Eclipse Foundation",
"product": "NetX Duo",
"versions": [
{
"status": "affected",
"version": "6.2.0",
"versionType": "semver",
"lessThanOrEqual": "6.5.1.202602"
},
{
"status": "unaffected",
"version": "6.5.2.202603"
}
],
"packageName": "NetX Duo",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-102759
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #4038 · Revision 1
- Added to Heist Feed
- Publisher date