CVE-2026-106465: medium-severity vulnerability in Eclipse ThreadX NetX Duo
Missing HelloVerifyRequest cookie validation in the NetX Secure DTLS server
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9epss 0.4%
In Eclipse ThreadX NetX Duo versions 6.0 through 6.5.2.202603, the NetX Secure DTLS server never compares the cookie a client returns with the one it issued, and treats any non-empty cookie as verified. A remote attacker can make the server send its full handshake flight, several kilobytes, to a forged source address, using it to reflect amplified traffic at a third party.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:L
Affected products
Eclipse Foundation · Eclipse ThreadX NetX DuoRelated CVEs — Eclipse ThreadX NetX Duo
In the same product, most dangerous first.
CVE-2026-114408HIGHNULL pointer dereference in ICMPv6 Packet Too Big processing when the destination table is fullEPSS 0.4%CVE-2026-102718HIGHOut-of-bounds read in the NetX Duo SNMP OID parser via a multi-byte BER lengthEPSS 0.3%CVE-2026-102715HIGHmDNS string-cache lookup matches on slot size, so a peer name aliases a shorter one and the response encoder writes past the packetEPSS 0.3%CVE-2026-102721MEDIUMTFTP client and server copy the ERROR packet message without bounding the read against the packetEPSS 0.3%CVE-2026-102716HIGHA malformed Session header permanently orphans one packet-pool block per RTSP requestEPSS 0.3%CVE-2026-102713HIGHUnbounded DATA datagram in the NetX Duo TFTP server causes an out-of-bounds read and a permanent stallEPSS 0.3%