CVE-2026-52836 OpenDDS: out-of-bounds `rd_ptr` dereference in `RtpsSampleHeader::init` — triggered by malformed RTPS submessage, remotely exploitable denial of service

OpenDDS is an open source C++ implementation of the Object Management Group OMG Data Distribution Service DDS. Prior to 3.34.0, a network attacker can crash a reachable OpenDDS participant by sending a malformed RTPS UDP submessage whose crafted length or sequence-number state causes...