Public vulnerability disclosure

CVE-2026-115403

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

publishedCWE-252CWE-476

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.

Technical severity8.2 highCVSS 4.0 · CNA: eclipse
Published2026-11-02Source updated 2026-11-02
Collected2026-11-021 attributed source

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
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

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
4.0 / 8.2
high
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NCNA: eclipse

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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