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CVE-2026-21535

Microsoft Teams

Microsoft CVSS 8.2 Updated March 15, 2026

Executive Risk Summary

"An improper access control vulnerability in Microsoft Teams allows an unauthorized attacker to disclose information over a network, potentially leading to sensitive data exposure. This vulnerability could be exploited by an attacker to gain unauthorized access to sensitive information, highlighting the need for immediate patching or mitigation."

Operational Audit Arsenal

Target Type Executable
Target Asset Teams.exe
Standard Path %appdata%\Microsoft\Teams
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: Teams.exe (Executable)
$Targets = 'Teams.exe'
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")

Get-ChildItem -Path $SearchPaths -Include $Targets -Recurse -ErrorAction SilentlyContinue | 
Select-Object FullName, @{Name="Version";Expression={$_.VersionInfo.ProductVersion}}

Patch Impact Forecast

Reboot Required Likely

Microsoft Teams service affected

Internal Work Notes

High-severity vulnerability in Microsoft Teams requires immediate patching to prevent unauthorized data disclosure.

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Intelligence Sources

Related Microsoft Threats

Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.