Microsoft June 2026 Patch Tuesday Addresses 200 Vulnerabilities Including 3 Zero-Days
Microsoft June 2026 Patch Tuesday fixes 3 zero-day, 200 flaws
Image: Bleepingcomputer
On June 2026 Patch Tuesday, Microsoft released updates for 200 vulnerabilities, including three zero-day flaws. Notable fixes include a Windows privilege escalation vulnerability and an HTTP/2 denial-of-service flaw. These updates are crucial for maintaining system security and preventing potential exploits.
- 01The June 2026 Patch Tuesday addresses 200 vulnerabilities, with 33 categorized as critical.
- 02Among the critical vulnerabilities, 28 involve remote code execution.
- 03Three zero-day vulnerabilities were fixed, including a Windows CTFMON privilege escalation flaw.
- 04The HTTP/2 Bomb vulnerability allows denial-of-service attacks by consuming server resources.
- 05Microsoft introduced a new registry setting, MaxHeadersCount, to mitigate the HTTP/2 attack.
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Microsoft's June 2026 Patch Tuesday has addressed a total of 200 vulnerabilities, including three zero-day flaws. Among these, 33 are classified as critical, with 28 related to remote code execution. The updates include a fix for a Windows CTFMON vulnerability that could grant SYSTEM privileges, and an HTTP/2 denial-of-service vulnerability known as the HTTP/2 Bomb, which exploits resource consumption issues to disrupt service. To help mitigate the HTTP/2 attack, Microsoft introduced a new registry setting, MaxHeadersCount, which limits the number of headers in HTTP requests. Additionally, a Windows BitLocker bypass flaw was patched, which could allow unauthorized access to encrypted drives. These updates are essential for enhancing system security and preventing potential attacks.
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These updates are crucial for users and organizations to secure their systems against potential exploits.
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