CVE-2026-115215
NetX Secure DTLS server allocates a session for each new source before the cookie exchange and never reclaims it, so spoofed datagrams exhaust the session pool
In Eclipse ThreadX NetX Duo versions 6.0 through 6.5.2.202603a, the NetX Secure DTLS server allocates a session from its fixed session pool for the first datagram from any unrecognised address and port, before the cookie exchange, and never releases a session whose handshake stalls. A remote, unauthenticated attacker can exhaust the pool with one spoofed datagram per source and deny DTLS service to legitimate clients until the application resets the sessions.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Eclipse ThreadX Eclipse Foundation |
≥ 6.0; ≤ 6.5.2.202603a (affected, custom)
Other versions: unaffected |
CNA: eclipse |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.7 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | CNA: eclipse |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
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