CVE-2026-119839: Microsoft Remote Desktop Client privilege escalation via untrusted search path

CVE-2026-119839 · Severity: high · CVSS 8.8 · Published 2026-11-10

Microsoft Remote Desktop Client, used to connect to and manage remote computers, contains a flaw in how it searches for files that allows an attacker on the network to trick it into loading malicious code. An attacker can exploit this to gain elevated privileges and take full control of the user's system.

Technologies: Microsoft Remote Desktop Client. Vendors: Microsoft.

Quick answers

Is CVE-2026-119839 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-119839 being exploited in the wild.
How severe is CVE-2026-119839?
High severity, with a CVSS score of 8.8, published 10 November 2026.
Which products and versions are affected?
Microsoft Remote Desktop Client.
Is there a fix for CVE-2026-119839?
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-2026-119839 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2026-119839?
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

An untrusted search path vulnerability in Remote Desktop Client permits privilege escalation when an attacker on the network can control the file search order or environment. The client loads executable code without verifying its origin, allowing code injection. Exploitation requires network access and no authentication; the attacker can elevate privileges to a higher context than the logged-in user.

Affected products

  • Microsoft Remote Desktop Client

Timeline

  • 2026-11-10: disclosed

References

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