Microsoft Patch Tuesday for July 2026 — Snort rules and prominent vulnerabilities

Microsoft has released its monthly security update for July 2026, which includes 622 vulnerabilities affecting a range of products, including 57 that Microsoft marked as "critical."

Microsoft has released its monthly security update for July 2026, which includes 622 vulnerabilities affecting a range of products, including 57 that Microsoft marked as "critical." Microsoft notes that two of the vulnerabilities disclosed this month have been exploited in the wild. CVE-2026-56155 is an important-severity elevation of privilege vulnerability in Active Directory Federation Services (AD FS) caused by insufficient granularity of access control. An authorized attacker could use it to elevate privileges locally.

CVE-2026-56164 is a moderate-severity vulnerability in Microsoft SharePoint Server caused by missing authentication for a critical function. An unauthorized attacker could exploit it to perform spoofing over a network.