CVE-2025-53783

Published: Aug 12, 2025Modified: Sep 3, 2025

7.5

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 1.6 / Impact: 5.9

Source: secure@microsoft.com (Secondary)

Description

Heap-based buffer overflow in Microsoft Teams allows an unauthorized attacker to execute code over a network.

Affected (8)

Products: Microsoft: Dynamics 365 Guides, Dynamics 365 Remote Assist, Teams, Teams Panels, Teams Phones

5 products

Dynamics 365 Guides

Dynamics 365 Remote Assist

Configuration A

8 vulnerable

Vulnerable Software	Affected Versions
Microsoft Dynamics 365 Guides	Before 907.2505.29001.0
Microsoft Dynamics 365 Remote Assist	Before 316.2505.28001
Microsoft Teams	Before 1.0.0.2025102802
Microsoft Teams	Before 7.10.1
Microsoft Teams	Before 25122.1207.3700.1444
Microsoft Teams	Before 25122.1415.3698.6812
Microsoft Teams Panels	Before 1.0.97.2025102203
Microsoft Teams Phones	Before 1.0.94.2025168802

Related CWEs

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53783

Source: secure@microsoft.com

Vendor Advisory

Timeline

No history available yet.