CVE-2025-53783
Microsoft Teams Heap Buffer Overflow Remote Code Execution Vulnerability
Description
Heap-based buffer overflow in Microsoft Teams allows an unauthorized attacker to execute code over a network.
INFO
Published Date :
Aug. 12, 2025, 6:15 p.m.
Last Modified :
Aug. 13, 2025, 5:33 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
1.6
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-53783.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53783 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-53783 vulnerability anywhere in the article.
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The Cyber Express
Fortinet Issues Emergency Patch for Actively Exploited Critical FortiSIEM Bug
Fortinet has urgently notified users of a critical OS command injection vulnerability in its FortiSIEM platform, identified as CVE-2025-25256, which is now being actively exploited in the wild. Accord ... Read more
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The Cyber Express
Microsoft Teams CVE-2025-53783 Vulnerability Could Allow Remote Code Execution
Microsoft has disclosed a serious vulnerability in its collaboration platform, Microsoft Teams, that could open the door to Remote Code Execution (RCE) attacks. The flaw, tracked as CVE-2025-53783, ca ... Read more
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CybersecurityNews
Microsoft Teams RCE Vulnerability Let Attackers Read, Write and Delete Messages
Microsoft disclosed a significant remote code execution (RCE) vulnerability in its Teams collaboration software as part of its August 2025 Patch Tuesday updates. The critical flaw, identified as CVE-2 ... Read more
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BleepingComputer
Microsoft August 2025 Patch Tuesday fixes one zero-day, 107 flaws
Today is Microsoft's August 2025 Patch Tuesday, which includes security updates for 107 flaws, including one publicly disclosed zero-day vulnerability in Windows Kerberos.This Patch Tuesday also fixes ... Read more
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CybersecurityNews
Microsoft Patch Tuesday August 2025 Released – 107 Vulnerabilities Fixed Including 36 RCE
Microsoft released its August Patch Tuesday security updates, addressing a total of 107 vulnerabilities across its product ecosystem. The update includes fixes for 90 vulnerabilities, classified as fo ... Read more
The following table lists the changes that have been made to the
CVE-2025-53783 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Aug. 12, 2025
Action Type Old Value New Value Added Description Heap-based buffer overflow in Microsoft Teams allows an unauthorized attacker to execute code over a network. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-122 Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53783
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-53783 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-53783
weaknesses.