The trigger is a four-byte handshake header and requires no cryptographic validity. It is reachable pre-authentication.
Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX - NetX Duo | unaffected |
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Tracking
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Tue, 20 Oct 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The TLS 1.3 Certificate-message parser in NetX Secure decrements the message length to skip a context byte without first establishing that the message has a byte to skip. A zero-length Certificate message therefore wraps the unsigned length to `0xFFFFFFFF`, which makes the bounds check that follows vacuous and sends the parser reading past the session packet buffer. The trigger is a four-byte handshake header and requires no cryptographic validity. It is reachable pre-authentication. | |
| Title | Out-of-bounds Read via a Zero-length TLS 1.3 Certificate Message in NetX Secure | |
| Weaknesses | CWE-125 CWE-191 |
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cvssV4_0
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: eclipse
Published:
Updated: 2026-10-20T15:10:08.102Z
Reserved: 2026-09-23T13:43:04.315Z
Link: CVE-2026-92853
Vulnrichment
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NVD
Status : Received
Published: 2026-10-20T16:17:17.277
Modified: 2026-10-20T16:17:17.277
Link: CVE-2026-92853
Redhat
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OpenCVE Enrichment
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