Answer in brief
CVE-2026-106465 records a Medium severity (CVSS 6.9) vulnerability in Missing HelloVerifyRequest cookie validation in the NetX Secure DTLS server. The current sources do not mark it as known exploited. The current feed maps Eclipse Foundation/Eclipse ThreadX NetX Duo (generic), Eclipse Foundation/NetX Duo (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Eclipse Foundation/Eclipse ThreadX NetX Duo (generic), Eclipse Foundation/NetX Duo (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Eclipse Foundation/Eclipse ThreadX NetX Duogeneric | >=6.0 <=6.5.2.202603 | Not reported |
| Eclipse Foundation/NetX Duogeneric | >=0 <=6.5.2.202603 | Not reported |
Published upstream
Oct 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 14, 2026
In Eclipse ThreadX NetX Duo versions 6.0 through 6.5.2.202603, the NetX Secure DTLS server never compares the cookie a client returns with the one it issued, and treats any non-empty cookie as verified. A remote attacker can make the server send its full handshake flight, several kilobytes, to a forged source address, using it to reflect amplified traffic at a third party.
Quoted source text, attributed separately from HOL analysis.