Microsoft fixes 55 security vulnerabilities in May 2021 Patch Tuesday Vulnerability Microsoft fixes 55 security vulnerabilities in May 2021 Patch Tuesday ddos May 12, 2021 On May 11, Microsoft released the May 2021 Patch Tuesday, repairing 55 security vulnerabilities, involving Windows, Microsoft... Read More Read more about Microsoft fixes 55 security vulnerabilities in May 2021 Patch Tuesday