Description
Improper control of generation of code ('code injection') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Published: 2026-09-08
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

An improper control of code generation in Microsoft Remote Desktop Client allows an unauthorized attacker to inject and execute malicious code over a network. This can lead to full compromise of the host system, including loss of confidentiality, integrity, and availability.

Affected Systems

Microsoft Remote Desktop client for Windows Desktop. Exact product edition and version details are not specified; all unpatched instances of the client are potentially vulnerable.

Risk and Exploitability

The vulnerability receives a CVSS score of 8.8, indicating high severity. The EPSS score is not available, which provides no current exploitation probability data, yet the risk remains significant. It is not listed in the CISA KEV catalog. The likely attack vector requires the victim to have the Remote Desktop client running and reachable over a network; the attacker can send specially crafted data that triggers code injection.

Generated by OpenCVE AI on September 9, 2026 at 21:28 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Install the latest security update for Microsoft Remote Desktop client available through the Microsoft Security Update Guide.
  • If the client is not required for legitimate business purposes, disable or uninstall the Remote Desktop Client application.
  • Apply network segmentation and firewall rules to restrict inbound traffic to the Remote Desktop client from untrusted networks.

Generated by OpenCVE AI on September 9, 2026 at 21:28 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 22 Sep 2026 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft remote Desktop Client
CPEs cpe:2.3:a:microsoft:remote_desktop_client:*:*:*:*:*:windows:*:*
Vendors & Products Microsoft remote Desktop Client

Wed, 09 Sep 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 08 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Description Improper control of generation of code ('code injection') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Title Remote Desktop Client Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft remote Desktop
Weaknesses CWE-94
CPEs cpe:2.3:a:microsoft:remote_desktop:*:*:*:*:*:windows:*:*
Vendors & Products Microsoft
Microsoft remote Desktop
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Remote Desktop Remote Desktop Client
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-09-25T21:33:34.232Z

Reserved: 2026-08-24T16:21:50.287Z

Link: CVE-2026-78463

cve-icon Vulnrichment

Updated: 2026-09-09T10:00:35.592Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-08T18:20:44.800

Modified: 2026-09-22T13:29:42.877

Link: CVE-2026-78463

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-10T02:30:16Z

Weaknesses
  • CWE-94

    Improper Control of Generation of Code ('Code Injection')