8.7 High

CVE-2026-102716 A malformed Session header permanently orphans one packet-pool block per RTSP request

Description

In Eclipse ThreadX NetX Duo versions up to and including 6.5.2.202603, the RTSP server returns a raw parser error for a malformed Session header and never releases the response packet it allocated. An unauthenticated client can drain the server's packet pool with a few dozen requests, stopping the RTSP server and, where the pool is shared, the rest of the network stack until the device restarts.

CVSS 4.0 detail

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Exploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector: Network
Attack complexity: Low
Attack requirements: None
Privileges required: None
Interaction: None
Confidentiality: None
Integrity: None
Availability: High
Confidentiality of other systems: None
Integrity of other systems: None
Availability of other systems: None

Affected products and versions

Product	Affected versions	Fixed in
eclipse-threadx/netxduo 6.5	earliest → 6.5.1	No fix stated
Eclipse ThreadX NetX Duo 6.5	earliest → 6.5.2.202603	6.5.2.202603a

References

github.com github.com

Timeline

Published September 29, 2026
Last modified November 4, 2026

The 3 CVEs of eclipse-threadx/netxduo →

CVE-2026-102720 DHCP client option walk drifts one byte per skipped option, reading past the received message and past the saved options buffer 5.3 Medium CVE-2026-102715 mDNS string-cache lookup matches on slot size, so a peer name aliases a shorter one and the response encoder writes past the packet 7.1 High

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