Loading vulnerability…
CVE-2025-26645 is a critical remote code execution vulnerability in Microsoft Remote Desktop Client caused by a relative path traversal condition. The flaw is described as involving improper access control and allows a malicious or attacker-controlled Remote Desktop Protocol server to cause code execution on a vulnerable client system when that client initiates a connection. The issue affects supported Remote Desktop Client implementations on Windows and is triggered during client interaction with a hostile RDP server, making the client the victim side of the attack path rather than the server.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical relative path traversal flaw in Remote Desktop Client that can allow a malicious or attacker-controlled RDP server to trigger remote code execution on a connecting vulnerable client.
Remote code execution vulnerability in Remote Desktop Client caused by improper access control.
A critical Remote Desktop Client remote code execution vulnerability exploitable by a malicious RDP server when a vulnerable client connects.
Remote code execution vulnerability in Remote Desktop Client.
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.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.