CVE-2026-115215

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    CVE-2026-115215

    Published: 2 Nov 2026Last Modified: 8 Nov 2026

    Summary: 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

    Details: 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.

    References: https://gitlab.eclipse.org/security/cve-assignment/-/work_items/487, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115215.json, https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-3p2g-x7hh-3w4c, https://nvd.nist.gov/vuln/detail/CVE-2026-115215

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 009da2f05a9fc098b8d699b2b814e515631d41cb
    Fixed -None

    Affected versions

    v6.5.2.202603b_rel
    v6.5.2.202603a_rel
    v6.5.2.202603_rel
    v6.5.1.202602_rel
    v6.5.0.202601_rel

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-115215 | CVE-DB