CVE-2026-115403

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    CVE-2026-115403

    Published: 2 Nov 2026Last Modified: 8 Nov 2026

    Summary: NULL pointer dereference in the BSD raw IPv6 send path when the destination table is full

    Details: In Eclipse ThreadX NetX Duo versions 6.0 through 6.5.2.202603a, built with BSD raw socket and IPv6 support, the IPv6 raw send path uses the destination-table entry it adds without checking that the add succeeded. When the destination table is full and an off-link destination is reached through a default router whose neighbour cache entry is unknown, sending on an IPv6 raw socket with header inclusion dereferences a NULL pointer; a remote sender can fill the table, for example with ICMPv6 Packet Too Big messages, and crash the sending thread.

    References: https://gitlab.eclipse.org/security/cve-assignment/-/work_items/500, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115403.json, https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-9w9h-x3fh-m3fp, https://nvd.nist.gov/vuln/detail/CVE-2026-115403

    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-2026-115403 | CVE-DB