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TI-2026-40545 Aliases CVE-2026-56171GHSA-g46q-9m87-q8fx

Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability

Priority LOW 34CWE-359Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from Microsoft.

Summary

Exposure of private personal information to an unauthorized actor in Windows RDP allows an unauthorized attacker to disclose information over a network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0066 51st percentileScored 2026-11-07
Fix Fixed Remote Desktop Web Client (Microsoft): 2.1.65.2Windows Admin Center (Microsoft): 2.7.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftRemote Desktop Web Client2.0.0.0 to before 2.1.65.22.1.65.2Patch availableCNA
MicrosoftWindows Admin Center1809.0 to before 2.7.42.7.4Patch availableCNA
  • Remote Desktop Web Client VendorMicrosoft Affected 2.0.0.0 to before 2.1.65.2 Fixed in 2.1.65.2 Patch available CNA
  • Windows Admin Center VendorMicrosoft Affected 1809.0 to before 2.7.4 Fixed in 2.7.4 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:remote_desktop_web_client:*:*:*:*:*:*:*:*before 2.1.65.2VulnerableMicrosoft
cpe:2.3:a:microsoft:windows_admin_center:*:*:*:*:*:*:*:*before 2606VulnerableMicrosoft
  • cpe:2.3:a:microsoft:remote_desktop_web_client:*:*:*:*:*:*:*:* Versions before 2.1.65.2 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:windows_admin_center:*:*:*:*:*:*:*:* Versions before 2606 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Remote Desktop Web Client (Microsoft) Fixed in 2.1.65.2
  • Fix · CNA Windows Admin Center (Microsoft) Fixed in 2.7.4

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Information Disclosure
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Remote Desktop Web ClientFixed 2.1.65.2 · Security Update
Windows Admin CenterFixed 2.7.4 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-56171
  2. 2026-10-03 Alias added: GHSA-g46q-9m87-q8fx
  3. 2026-10-07 EPSS moved to the 50th–90th percentile

References

Patch 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences