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CVE-2026-47654 is a critical remote code execution vulnerability in Microsoft Remote Desktop Client. The weakness is classified as a use-after-free condition and is also described in available reporting as a heap-based memory corruption issue. Exploitation occurs in the client-side handling of data during a Remote Desktop session, where an attacker controlling a malicious Remote Desktop Server can trigger the flaw when a victim initiates a connection using a vulnerable client. Successful exploitation requires winning a race condition, which contributes to the high attack complexity assessment. If triggered successfully, the memory corruption can be leveraged to execute attacker-controlled code in the context of the Remote Desktop Client on the victim system.
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No public exploit code observed for this vulnerability.
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3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical remote code execution vulnerability in Remote Desktop Client caused by a heap-based buffer overflow.
A Remote Desktop Client remote code execution vulnerability triggered when a victim connects to an attacker-controlled server, leading to a heap-based buffer overflow.
A critical remote code execution vulnerability in Microsoft Remote Desktop Client caused by a heap-based buffer overflow/use-after-free condition. Exploitation requires user interaction and high attack complexity, including winning a race condition, and can be triggered when a victim connects to a malicious Remote Desktop Server.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.