MSRC-CVE-2026-69550 — Windows App for Mac Information Disclosure Vulnerability

Summary

Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What type of information could be disclosed by this vulnerability?
Exploiting this vulnerability could allow the disclosure of initialized or uninitialized memory in the process heap.

Security updates
11.3.9 — https://go.microsoft.com/fwlink/?linkid=868963

Vulnerabilities 1

Medium 6.5

CVE-2026-69550

Windows App for Mac Information Disclosure Vulnerability

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

Microsoft Windows App for Mac Windows

Aug 19, 2026

Revision history

2026-08-27 #2
Updated CWE value. This is an informational change only.
2026-08-11 #1
Information published.

References

CVE-2026-69550 Windows App for Mac Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69550
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss