Threats affecting pkg:github/rustdesk

CVE-2026-76840 is a high-severity out-of-bounds write vulnerability in RustDesk's Windows clipboard redirection feature. The flaw occurs because the software copies a peer-supplied length into a fixed-size buffer without properly checking upper bounds, allowing a malicious remote peer to write data beyond the buffer's end during clipboard file content pasting. This vulnerability is similar to a previously fixed defect in FreeRDP and affects RustDesk versions up to 1.4.9.