Secure Cyber Vulnerability Management

15/08/2025
Zero-Day Initiative

ZDI-25-839: Microsoft Teams Real Time Media Manager Integer Underflow Remote Code Execution Vulnerability

by Deepanshu Jha
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Teams. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 9.8. The following CVEs are assigned: CVE-2025-53783.

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