Microsoft Released July 2026 Software Updates

Microsoft has released software updates as part of its July 2026 Patch Tuesday. The updates fix 570 security vulnerabilities in total, including 3 zero-day vulnerabilities.

The breakdown of the vulnerabilities are as follows:

  • 254 elevation of privilege

  • 145 remote code execution

  • 102 information disclosure

  • 16 spoofing

  • 35 denial of service

  • 17 security feature bypass

The publicly disclosed zero-days are as follows:

  • CVE-2026-56155 - vulnerability in Active Directory Federation Services that can lead to elevation of privilege

  • CVE-2026-56164 - vulnerability in SharePoint Server that can lead to elevation of privilege

  • CVE-2026-50661 - vulnerability in Windows BitLocker that can lead to security feature bypass

Why You Should Care?

These vulnerabilities are flaws that have been identified in Microsoft software, and now that they are publicly known, attackers will try to exploit as many targets as possible before users apply the fix. This makes it extra dangerous, and needs to be addressed as soon as possible.

In this case, three zero-day vulnerabilities are publicly disclosed or actively exploited, which means attackers will likely rush to write exploit code and start attacking businesses. It is only a matter of time before the attackers compromise your business. Now that patches are available, it is critical to apply the patches as soon as possible to avoid getting compromised.

What Should You Do?

  • Test the patches ASAP at your organization, and make sure it does not break any business applications

  • Prioritize the three zero-day vulnerabilities

  • Roll out the rest of the Patch Tuesday updates

References

https://www.bleepingcomputer.com/news/microsoft/microsoft-july-2026-patch-tuesday-fixes-massive-570-flaws-3-zero-days/

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Microsoft released July 2026 patches and more - Jul 19, 2026

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