What’s Vulnerable › Vulnerabilities

CVE-2026-69550: Windows App for Mac Information Disclosure Vulnerability

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-19 · updated 2026-10-30
• Weakness: CWE-126

Description

Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.

Affected products

• Microsoft Windows App Client for Windows Desktop: before 11.3.9 — fixed in 11.3.9
• Microsoft Windows App Client for Windows Desktop: from 11.0.0 before 11.3.9 — fixed in 11.3.9

How to fix

Upgrade to a fixed version: Microsoft Windows App Client for Windows Desktop 11.3.9; Microsoft Windows App Client for Windows Desktop 11.3.9. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69550

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