--- title: "Secure Your Business: Microsoft Patches Two Zero-Day Vulnerabilities" description: Safeguard your business from the latest cyber threats. Learn how Microsoft patched two zero-day vulnerabilities and how AppGuard can protect your systems. image: https://prevent-ransomware.com/hubfs/AdobeStock_350919255.jpeg --- [![CHIPS Cyber Defense Solutions, LLC](https://prevent-ransomware.com/hubfs/chips_blue_logo_higher_res-20210817212617.png) Cyber Defense Solutions, LLC](https://prevent-ransomware.com) ☰ [About](https://prevent-ransomware.com/about) [Solutions](https://prevent-ransomware.com/solutions) [Industries](https://prevent-ransomware.com/industries) [Resources](https://prevent-ransomware.com/resources) [Partner With Us](https://prevent-ransomware.com/meetings/tony-chiappetta/30-minute-initial-meeting) [About](https://prevent-ransomware.com/about) [Solutions](https://prevent-ransomware.com/solutions) [Industries](https://prevent-ransomware.com/industries) [Resources](https://prevent-ransomware.com/resources) [Partner With Us](https://prevent-ransomware.com/meetings/tony-chiappetta/30-minute-initial-meeting) # Secure Your Business: Microsoft Patches Two Zero-Day Vulnerabilities ![Tony Chiappetta](https://prevent-ransomware.com/hubfs/Tony%20LinkedIn.jpg) by [Tony Chiappetta](https://prevent-ransomware.com/blog/author/tony-chiappetta) May 13, 2023 As cyberattacks become increasingly sophisticated and frequent, businesses must prioritize their cybersecurity measures. Recently, Microsoft patched two zero-day vulnerabilities that were being actively exploited by threat actors. These vulnerabilities allowed attackers to execute arbitrary code remotely, giving them complete control over a victim's system.The first vulnerability, tracked as CVE-2021-31166, was found in the HTTP protocol stack used by Windows. The second, tracked as CVE-2021-31207, was found in the Windows kernel. Both vulnerabilities were rated as critical and affected multiple versions of Windows, including the latest Windows 10 and Windows Server versions. These vulnerabilities were discovered and reported to Microsoft by the security firm "Theori" and have since been patched by Microsoft as part of their May 2021 Patch Tuesday updates. However, the incident highlights the importance of businesses having robust cybersecurity measures in place to prevent such attacks. One effective solution is AppGuard, a proactive endpoint protection software that uses patented dynamic isolation technology to prevent malicious code execution. AppGuard's unique approach to endpoint protection blocks malware and zero-day attacks without the need for detection or signatures, providing businesses with a proactive and robust defense against cyber threats. As a business owner, it's crucial to prioritize cybersecurity and take measures to protect your systems and data. By partnering with AppGuard, you can ensure your business is protected against the latest cyber threats, including zero-day vulnerabilities. Don't wait until it's too late – [talk to us today](https://prevent-ransomware.com/getting-started) about how AppGuard can prevent this type of incident and protect your business. Like this article? Please share it with others! 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Mt. Juliet, Tennessee. [Follow us on LinkedIn](https://www.linkedin.com/company/chips-cyber-defense-solutions-llc) #### The Stack - [AppGuard](https://prevent-ransomware.com/AppGuard) - [Zimperium](https://prevent-ransomware.com/Zimperium) - [CyberCloak](https://prevent-ransomware.com/CyberCloak) #### Company - [About Us](https://prevent-ransomware.com/about) - [The MSP 3.0 Story](https://prevent-ransomware.com/MSP3) - [Become a Partner](https://prevent-ransomware.com/meetings/tony-chiappetta/30-minute-initial-meeting) © 2026 CHIPS Cyber Defense Solutions, LLC. All rights reserved. Built for the Best. ```json { "@context" : "http://schema.org/", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Tony Chiappetta", "url" : "https://prevent-ransomware.com/blog/author/tony-chiappetta" }, "dateModified" : "2023-05-13T6:31:35 PM", "datePublished" : "2023-05-13 18:31:35", "description" : "Safeguard your business from the latest cyber threats. 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