CVE-2025-53783
Microsoft Teams 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 :
Sept. 3, 2025, 2:48 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-53783
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Microsoft Teams to the latest version.
- Apply security patches provided by Microsoft.
- Review network access controls.
Public PoC/Exploit Available at Github
CVE-2025-53783 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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 | Vendor Advisory |
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.
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).
This project demonstrates real-world vulnerability management skills using Qualys Community Edition to identify, assess, and remediate security risks on a Microsoft Azure-hosted Windows 11 virtual machine (VM). The process follows the NIST Cybersecurity Framework (CSF) and NIST 800-53 controls, covering Identify, Protect, and Respond phases.
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.
-
CybersecurityNews
Weekly Cybersecurity News Recap : Apple 0-day, Chrome, Copilot Vulnerabilities and Cyber Attacks
This past week was packed with high-severity disclosures and active exploitation reports across the global threat landscape. At the forefront, Apple rushed out emergency patches for yet another zero-d ... Read more
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The Cyber Express
Critical Chrome Flaw CVE‑2025‑9132 Exposes Browsers to Remote Code Execution
The Hong Kong Computer Emergency Response Team Coordination Center issued an alert regarding a remote code execution flaw in Google Chrome. The Chrome team reported the same vulnerability. The Chrome ... Read more
-
CybersecurityNews
Microsoft Teams “couldn’t connect” Error Following Recent Sidebar Update – Fix Released
Microsoft is in the process of deploying a fix for a service degradation issue affecting Microsoft Teams users globally, which presents a “couldn’t connect to this app” error upon launching the deskto ... Read more
-
The Cyber Express
Qilin Remains Top Ransomware Group as Attacks Rise
Qilin continues to stake a claim as the top ransomware group in the wake of the decline of RansomHub earlier this year. In July, Qilin led all ransomware groups in claimed victims for the third time i ... Read more
-
The Cyber Express
Zoom Urges Windows Users to Update After Severe CVE-2025-49457 Security Flaw
A critical security vulnerability has recently been discovered in certain versions of Zoom Clients for Windows that could expose users to cybersecurity risks, including privilege escalation via networ ... Read more
-
The Cyber Express
CISA Warns of Active Exploits in N-able N-central, Urges Upgrade to 2025.3.1
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two high-risk vulnerabilities in N-able N-central to its Known Exploited Vulnerabilities (KEV) catalog, warning organizations ... Read more
-
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
-
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
-
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
-
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
-
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.
-
Initial Analysis by [email protected]
Sep. 03, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:microsoft:teams:*:*:*:*:*:iphone_os:*:* versions up to (excluding) 7.10.1 *cpe:2.3:a:microsoft:dynamics_365_guides:*:*:*:*:*:hololens:*:* versions up to (excluding) 907.2505.29001.0 *cpe:2.3:a:microsoft:dynamics_365_remote_assist:*:*:*:*:*:hololens:*:* versions up to (excluding) 316.2505.28001 *cpe:2.3:a:microsoft:teams:*:*:*:*:*:android:*:* versions up to (excluding) 1.0.0.2025102802 *cpe:2.3:a:microsoft:teams:*:*:*:*:*:macos:*:* versions up to (excluding) 25122.1207.3700.1444 *cpe:2.3:a:microsoft:teams:*:*:*:*:desktop:*:*:* versions up to (excluding) 25122.1415.3698.6812 *cpe:2.3:a:microsoft:teams_phones:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.94.2025168802 *cpe:2.3:a:microsoft:teams_panels:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.97.2025102203 Added Reference Type Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53783 Types: Vendor Advisory -
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