network receive window

The network receive window tag covers a Linux kernel networking vulnerability involving Multipath TCP (MPTCP) receive-window accounting. The reported flaw, tracked as CVE-2026-53183, can allow incoming traffic to exceed the receiver’s configured buffer size. Coverage focuses on the security and availability implications: the issue is reachable over a network, requires neither authentication nor user interaction, and is classified as a high-severity denial-of-service risk. The material also places the bug in the context of complex multi-path networks, while noting that its practical impact is narrower than the headline severity may suggest. This tag is relevant to readers following kernel networking, buffer management, and MPTCP security issues.