CVE-2025-49737: Microsoft Teams Elevation of Privilege Vulnerability

Overview

Severity

High (CVSS 7)

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Elevation of Privilege

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2025-Jul

Released

2025-07-08

EPSS Score

0.12% (percentile: 30.4%)

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Teams allows an authorized attacker to elevate privileges locally.

FAQ

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to win a race condition. What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Affected Products (1)

Microsoft Office

• Microsoft Teams for Mac, New Edition

Acknowledgments

<a href="https://www.linkedin.com/in/omer-dahan-07404320b/">Omer Dahan</a>

Revision History

• 2025-07-08: Information published.