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Review reviewHigh

CVE-2026-42913

Microsoft Remote Desktop client for Windows Desktop, Windows 11 version 23H2, Windows 11 Version 23H2

Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVSS
7.5
EPSS
0.47%
38.4% percentile
CISA KEV
Not listed
Published
2026.06.10
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.47%
Technical severityCVSS 7.5

Vulnerability overview

Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

Affected product and versions

Product
Microsoft Remote Desktop client for Windows Desktop, Windows 11 version 23H2, Windows 11 Version 23H2
Affected versions
>= 1.2.0.0 < 1.2.7214.0, >= 10.0.22631.0 < 10.0.22631.7219, >= 10.0.26100.0 < 10.0.26100.8655, >= 10.0.26200.0 < 10.0.26200.8655, >= 10.0.28000.0 < 10.0.28000.2269, >= 10.0.20348.0 < 10.0.20348.5256, >= 10.0.26100.0 < 10.0.26100.32995, < 1.2.7214, < 10.0.22631.7219, < 10.0.26100.8655, < 10.0.26200.8655, < 10.0.28000.2269, < 10.0.20348.5256, < 10.0.26100.32995
Fixed versions
1.2.7214, 10.0.22631.7219, 10.0.26100.8655, 10.0.26200.8655, 10.0.28000.2269, 10.0.20348.5256, 10.0.26100.32995

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Microsoft Remote Desktop client for Windows Desktop, Windows 11 version 23H2, Windows 11 Version 23H2 and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
CWE-362, CWE-416, CWE-787