Heap-based buffer overflow in Microsoft products - CVE-2025-53783
Published: August 13, 2025
Vulnerability identifier: #VU114040
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-53783
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft Teams for macOS
Microsoft Teams for Desktop
Microsoft Teams for iOS
Microsoft Teams for Android
Teams for D365 Guides Hololens
Teams Phones
Teams Panels
Teams for D365 Remote Assist HoloLens
Microsoft Teams for macOS
Microsoft Teams for Desktop
Microsoft Teams for iOS
Microsoft Teams for Android
Teams for D365 Guides Hololens
Teams Phones
Teams Panels
Teams for D365 Remote Assist HoloLens
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Microsoft Teams. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2025-53783
Install updates from vendor's website.