CVE-2026-102719: Eclipse ThreadX NetX Duo · PRNG
Affects Eclipse ThreadX NetX DuoSource CVE Database V5
Not known to be exploited · CVSS 6.3 Medium : upgrade to 6.5.2 when convenient.
Data as of 12 Nov 2026, 23:24 UTC
Thin evidence
One scorer or none| CNA (eclipse) | CVSS 4.0 | 6.3 |
|---|
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.5.2
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:LExploitation evidence
Disclosed: evidence found.
CVE published 29 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade eclipse-threadx/netxduo to 6.5.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Eclipse FoundationEclipse ThreadX NetX Duo | Affected
| Fixed in– |
GitHubeclipse-threadx/netxduopkg:github/eclipse-threadx/netxduoOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fixed version 6.5.2 of Eclipse ThreadX NetX Duo is available that addresses this vulnerability. Users should upgrade to version 6.5.2 or later to remediate the issue. No additional mitigations are specified by the vendor.
Description
Eclipse ThreadX NetX Duo versions 6.0 through 6.5.2.202603a use a cryptographically weak pseudo-random number generator (PRNG) for generating HelloVerifyRequest cookies in the DTLS server. The default NX_RAND() function relies on the standard C library rand() without a key or client binding. This weakness allows an attacker who can predict the PRNG output to spoof the cookie exchange and cause the server to send handshake data to a victim, effectively using the server as a traffic reflector.