--- title: Microsoft Patches 6 Actively Exploited Zero-Days | daily.dev description: Microsoft's February Patch Tuesday addresses 59 CVEs, including 6 actively exploited zero-days requiring immediate attention. Three are security feature bypass... canonical: https://daily.dev/posts/microsoft-patches-6-actively-exploited-zero-days-c7lcgj88e twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Microsoft Patches 6 Actively Exploited Zero-Days | daily.dev og:description: Microsoft's February Patch Tuesday addresses 59 CVEs, including 6 actively exploited zero-days requiring immediate attention. Three are security feature bypass... og:url: https://daily.dev/posts/microsoft-patches-6-actively-exploited-zero-days-c7lcgj88e og:image: https://api.daily.dev/og/posts/C7LCgj88e.png og:image:alt: Microsoft Patches 6 Actively Exploited Zero-Days og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Microsoft Patches 6 Actively Exploited Zero-Days **[Dark Reading](https://daily.dev/sources/dr)** · 5 min read · 0 upvotes · 0 comments ## Summary Microsoft's February Patch Tuesday addresses 59 CVEs, including 6 actively exploited zero-days requiring immediate attention. Three are security feature bypass flaws (CVE-2026-21510, CVE-2026-21513, CVE-2026-21514) affecting Windows SmartScreen, MSHTML, and Microsoft Word/Office, enabling attackers to execute arbitrary code via user interaction. Two elevation-of-privilege bugs target Desktop Windows Manager and Windows Remote Desktop Services, while a denial-of-service flaw in Windows Remote Access Connection Manager can be triggered by a non-admin user. Microsoft issued an emergency out-of-band patch for the Word vulnerability. Security teams are also advised to monitor 10 Azure CVEs, including one rated CVSS 9.8. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [February 2026 Patch Tuesday: Six new and actively exploited Microsoft vulnerabilities addressed](https://daily.dev/posts/february-2026-patch-tuesday-six-new-and-actively-exploited-microsoft-vulnerabilities-addressed-uxvhpzt2r) · CSO Online · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#cyber](https://daily.dev/tags/cyber), [#microsoft](https://daily.dev/tags/microsoft), [#zero-day](https://daily.dev/tags/zero-day) [View this post on daily.dev](https://daily.dev/posts/microsoft-patches-6-actively-exploited-zero-days-c7lcgj88e) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Microsoft Patches 6 Actively Exploited Zero-Days","url":"https://daily.dev/posts/microsoft-patches-6-actively-exploited-zero-days-c7lcgj88e","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/microsoft-patches-6-actively-exploited-zero-days-c7lcgj88e"},"datePublished":"2026-02-23T22:51:31.878Z","dateModified":"2026-08-24T07:03:30.968Z","description":"Microsoft's February Patch Tuesday addresses 59 CVEs, including 6 actively exploited zero-days requiring immediate attention. 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