Microsoft Corporation (NASDAQ:MSFT) is one of the best 52-week high stocks to buy now. On July 21, the software giant released a patch for a vulnerability that affected the servers of the SharePoint document management software.

Microsoft confirmed “active” cyberattacks exploiting vulnerabilities in on-premises SharePoint Servers and released emergency patches for several versions of the systems.

Victims of the recent global hacking campaign include the National Institutes of Health and the National Nuclear Security Administration, officials said.

Although Microsoft acknowledged the SharePoint problem, the original fix did not prevent hacking. Right now government and organisations are worried

Microsoft has released security updates addressing the exploited vulnerabilities and urged all customers to apply patches without delay.

Singapore's School of the Arts (SOTA) added that the global cyberattack campaign has already compromised organisations globally, including government agencies and multinational corporations.

Microsoft is probing whether a leak from its Microsoft Active Protections Program (MAPP)—an early warning system for cybersecurity partners—may have enabled Chinese hackers to exploit unpatched vulnerabilities in its SharePoint server software.

DOD CIO says she's been speaking daily with Microsoft since the zero-day Sharepoint vulnerability was discovered.