CVE-2026-97789: Microsoft Remote Desktop Client use-after-free RCE

CVE-2026-97789 · Severity: high · CVSS 7.5 · Published 2026-10-13

Microsoft Remote Desktop Client contains a use-after-free vulnerability that allows an attacker to execute arbitrary code on a user's computer over a network connection. An attacker could exploit this flaw by sending specially crafted packets to gain control of the victim's system and potentially steal data or install malware. No active exploitation has been reported at this time.

Technologies: Microsoft Remote Desktop Client. Vendors: Microsoft.

Quick answers

Is CVE-2026-97789 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-97789 being exploited in the wild.
How severe is CVE-2026-97789?
High severity, with a CVSS score of 7.5, published 13 October 2026.
Which products and versions are affected?
Microsoft Remote Desktop Client.
Is there a fix for CVE-2026-97789?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-97789 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-97789?
Check whether you run Microsoft Remote Desktop Client. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A use-after-free memory corruption flaw exists in the Remote Desktop Client that can be triggered by a remote, unauthenticated attacker sending malicious network traffic. The vulnerability allows arbitrary code execution in the context of the affected application, without requiring user interaction or authentication. Patches are available from Microsoft.

Affected products

  • Microsoft Remote Desktop Client

Timeline

  • 2026-10-13: disclosed

References

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