Microsoft Patches Record 622 Vulnerabilities, Including Two Exploited Zero-Days
Microsoft released patches addressing a record 622 vulnerabilities, including two zero-day flaws actively exploited in the wild affecting Active Directory Federation Services and SharePoint Server. Additionally, a BitLocker security bypass vulnerability was publicly disclosed prior to the patch release. The update also includes fixes for critical vulnerabilities in Windows components such as VMSwitch, Exchange Server, Remote Desktop Protocol, DHCP Server, and others. These vulnerabilities span multiple Microsoft products including Windows, Office, Azure, Defender, and SQL Server.
AI Analysis
Technical Summary
Microsoft's July 2026 Patch Tuesday addresses 622 vulnerabilities, setting a new record for the number of patched issues in a single update cycle. Among these are two zero-day vulnerabilities exploited in the wild: CVE-2026-56155 in Active Directory Federation Services allowing local privilege escalation to administrator, and CVE-2026-56164 in SharePoint Server enabling network-based privilege escalation without authentication. A BitLocker security feature bypass (CVE-2026-50661) was publicly disclosed before the patch release and can be exploited by physical attackers. Other critical vulnerabilities include a Windows VMSwitch flaw (CVE-2026-57092, CVSS 9.9), SharePoint vulnerabilities (CVE-2026-50522), and remote code execution bugs in Exchange Server, Remote Desktop Protocol, DHCP Server, Windows Server Network driver, and Minecraft Bedrock Dedicated Server. Microsoft also patched vulnerabilities across Azure, Defender, Developer Tools, Edge, and SQL Server. The large volume of patches is attributed to accelerated vulnerability discovery aided by AI-driven scanning technologies.
Potential Impact
The two zero-day vulnerabilities in Active Directory Federation Services and SharePoint Server have been exploited in the wild, allowing attackers to escalate privileges locally or remotely without authentication, potentially leading to full administrative control. The BitLocker bypass vulnerability could allow physical attackers to circumvent disk encryption protections. Other critical vulnerabilities could enable remote code execution, cross-site scripting, and privilege escalation across various Microsoft products, increasing the risk of system compromise, data breaches, and disruption of services if left unpatched.
Mitigation Recommendations
Microsoft has released official patches addressing all 622 vulnerabilities, including the exploited zero-days and the publicly disclosed BitLocker bypass. Organizations should prioritize applying the July 2026 Patch Tuesday updates promptly to mitigate these risks. Since this is a traditional software update scenario, no additional vendor advisories indicate alternative mitigations or no-action requirements. Patch status is confirmed as official-fix via Microsoft's release notes.
Microsoft Patches Record 622 Vulnerabilities, Including Two Exploited Zero-Days
Description
Microsoft released patches addressing a record 622 vulnerabilities, including two zero-day flaws actively exploited in the wild affecting Active Directory Federation Services and SharePoint Server. Additionally, a BitLocker security bypass vulnerability was publicly disclosed prior to the patch release. The update also includes fixes for critical vulnerabilities in Windows components such as VMSwitch, Exchange Server, Remote Desktop Protocol, DHCP Server, and others. These vulnerabilities span multiple Microsoft products including Windows, Office, Azure, Defender, and SQL Server.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Microsoft's July 2026 Patch Tuesday addresses 622 vulnerabilities, setting a new record for the number of patched issues in a single update cycle. Among these are two zero-day vulnerabilities exploited in the wild: CVE-2026-56155 in Active Directory Federation Services allowing local privilege escalation to administrator, and CVE-2026-56164 in SharePoint Server enabling network-based privilege escalation without authentication. A BitLocker security feature bypass (CVE-2026-50661) was publicly disclosed before the patch release and can be exploited by physical attackers. Other critical vulnerabilities include a Windows VMSwitch flaw (CVE-2026-57092, CVSS 9.9), SharePoint vulnerabilities (CVE-2026-50522), and remote code execution bugs in Exchange Server, Remote Desktop Protocol, DHCP Server, Windows Server Network driver, and Minecraft Bedrock Dedicated Server. Microsoft also patched vulnerabilities across Azure, Defender, Developer Tools, Edge, and SQL Server. The large volume of patches is attributed to accelerated vulnerability discovery aided by AI-driven scanning technologies.
Potential Impact
The two zero-day vulnerabilities in Active Directory Federation Services and SharePoint Server have been exploited in the wild, allowing attackers to escalate privileges locally or remotely without authentication, potentially leading to full administrative control. The BitLocker bypass vulnerability could allow physical attackers to circumvent disk encryption protections. Other critical vulnerabilities could enable remote code execution, cross-site scripting, and privilege escalation across various Microsoft products, increasing the risk of system compromise, data breaches, and disruption of services if left unpatched.
Mitigation Recommendations
Microsoft has released official patches addressing all 622 vulnerabilities, including the exploited zero-days and the publicly disclosed BitLocker bypass. Organizations should prioritize applying the July 2026 Patch Tuesday updates promptly to mitigate these risks. Since this is a traditional software update scenario, no additional vendor advisories indicate alternative mitigations or no-action requirements. Patch status is confirmed as official-fix via Microsoft's release notes.
Technical Details
- Article Source
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Threat ID: 6a5687c868715ace43095e6f
Added to database: 07/14/2026, 19:02:32 UTC
Last enriched: 07/14/2026, 19:02:49 UTC
Last updated: 07/15/2026, 03:35:48 UTC
Views: 119
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