Microsoft Teams RCE Flaw Allows Hackers to Read, Modify, and Delete Messages

Microsoft disclosed a heap-based buffer overflow (CVE-2025-53783) in Microsoft Teams that can lead to remote code execution and compromise confidentiality, integrity, and availability; the issue is rated CVSS 7.5 and classified as Important. Exploitation requires user interaction and has high attack complexity, and Microsoft assesses exploitation as "Less Likely"; an official patch has been released and organizations are advised to apply updates and follow standard security practices.