Claims of full remote takeover of Ubuntu are exaggerated… Vulnerability not limited to MPTCP
Original headline우분투 전부 원격 장악 주장은 과장…MPTCP에만 한정되지 않은 결함
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A claim that all Ubuntu servers are remotely exploitable for root access without user interaction has been called overstated by SlowMist CISO 23pds, who noted the demonstration of CVE-2026-98432 targeted only Linux servers accepting MPTCP connections, per Foresight News. The vulnerability is a use-after-free error in IPv4 TCP connection handling and is not limited to MPTCP, though Anthropic research published October 27 focused on multipath TCP receivers. The clarification matters for crypto infrastructure operators assessing exposure, as exaggerated risk narratives can drive unnecessary emergency patching or market fear. Watch for vendor advisories narrowing the affected configurations and for any confirmed exploitation beyond MPTCP-enabled servers.
Muhabbit's AI wrote this summary in its own words from TokenPost's report and translated it from Korean. It can get details wrong, so check the source.
Named in this story
Ubuntu, Anthropic, 23pds, SlowMist