CVE-2026-115215
Published:November 02, 2026
Updated:November 04, 2026
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.
Affected Packages
https://github.com/eclipse-threadx/netxduo.git (GITHUB):
Affected version(s) >=v6.0_rel <v6.5.2.202603b_rel || =v.6.4.4.202503_rel <v6.5.2.202603b_rel || =v6.5.2.202603a_rel <v6.5.2.202603b_rel || =v6.5.2.202603_rel <v6.5.2.202603b_relFix Suggestion:
Update to version v6.5.2.202603b_relRelated Resources (4)
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Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
EPSS
Base Score:
0.41