{"id":"CVE-2026-115403","title":"NULL pointer dereference in the BSD raw IPv6 send path when the destination table is full","summary":"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 tab…","severity":"high","cvss":8.2,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-252","CWE-476"],"vendor":"Eclipse Foundation","product":"Eclipse ThreadX","affected":["eclipse_threadx >= 6.0 <= 6.5.2.202603a"],"published":"2026-11-02","updated":"2026-11-02","sourceUpdated":"2026-11-02T21:40:21.778Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115403","references":[{"url":"https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-9w9h-x3fh-m3fp"},{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/500"}],"tags":["cve.org"],"epss":0.00324,"epssPercentile":0.2554,"ingestedAt":"2026-11-05T19:30:42.860Z","slug":"CVE-2026-115403","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `eclipse_threadx >= 6.0 <= 6.5.2.202603a`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}