--- title: Microsoft's September Update Reveals Critical Zero-Days... description: Microsoft's September 2024 Patch Tuesday addresses 79 security vulnerabilities, including four critical zero-day flaws. Key updates include patches for issues... canonical: https://daily.dev/posts/microsoft-s-september-update-reveals-critical-zero-days-and-patching-issues-jpdxky7x9 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Microsoft's September Update Reveals Critical Zero-Days and Patching Issues | daily.dev og:description: Microsoft's September 2024 Patch Tuesday addresses 79 security vulnerabilities, including four critical zero-day flaws. Key updates include patches for issues... og:url: https://daily.dev/posts/microsoft-s-september-update-reveals-critical-zero-days-and-patching-issues-jpdxky7x9 og:image: https://api.daily.dev/og/posts/JpDxkY7x9.png og:image:alt: Microsoft's September Update Reveals Critical Zero-Days and Patching Issues 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's September Update Reveals Critical Zero-Days and Patching Issues **[Collections](https://daily.dev/sources/collections)** · 2 min read · 1 upvotes · 0 comments ## Summary Microsoft's September 2024 Patch Tuesday addresses 79 security vulnerabilities, including four critical zero-day flaws. Key updates include patches for issues that could undo previous security measures or elevate privileges, with an emphasis on urgent user action to install these patches. Older Windows 10 versions are particularly at risk if not promptly updated. ## Content # Microsoft’s September 2024 Patch Tuesday Addresses Critical Vulnerabilities and Zero-Days ## Overview Microsoft's September 2024 Patch Tuesday brings crucial security updates, addressing a total of 79 vulnerabilities across various products. Of these, four are prominently marked as critical or actively exploited zero-day vulnerabilities, making it imperative for users to promptly install the latest fixes to safeguard their systems. ## Key Vulnerabilities ### Critical Zero-Days 1. **CVE-2024-38217**: This zero-day vulnerability, which has been exploited for six years, presents a significant threat. It urgently requires patching to prevent further exploitation. 2. **CVE-2024-43491**: Marked with a CVSS score of 9.8, this critical flaw can undo previously applied security patches on Windows 10 version 1507, leaving systems vulnerable. Users need to apply the September 2024 Servicing Stack Update (KB5043936) and Security Update (KB5043083) to mitigate this issue. 3. **CVE-2024-38014** & **CVE-2024-38226**: Other actively exploited zero-days that bypass significant security protections and elevate privileges to system levels. ### Other Notable Vulnerabilities - **Servicing Stack Issue**: A critical vulnerability affecting Windows 10 that can hinder system updates if unaddressed. - **Windows Mark of the Web Bypass**: A medium severity bug in the Windows security feature, possibly affecting file security checks. - **Windows Installer Privilege Escalation**: A high-severity flaw that allows attackers to gain elevated privileges, posing serious security risks. - **Microsoft Publisher**: A security feature bypass affecting Microsoft Publisher, demanding swift implementation of the latest updates. ### Additional Insights The update also includes seven critical remote code execution and privilege escalation vulnerabilities. Microsoft emphasizes the importance of updating older Windows 10 versions promptly, given that certain fixes are prone to being rolled back. Meanwhile, newer versions like Windows 11 21H2 and 22H2 will receive updates next month as their support lifecycle concludes. ## Recommendations Organizations and individual users should prioritize applying these patches immediately. It is essential to monitor systems for signs of exploitation and consider leveraging advanced AI-driven cybersecurity measures to bolster defense strategies. Updating to the latest versions ensures enhanced protection, especially against vulnerabilities that have rendered older systems dangerously unpatched. ## Conclusion Microsoft's comprehensive September update aims at fortifying systems against a range of critical and actively exploited vulnerabilities. Timely installation of these patches is crucial to maintaining robust security and preventing potential exploits that could have far-reaching impacts. ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments - [CNCF Unveils Schedule for KubeCon \+ CloudNativeCon Europe 2026](https://daily.dev/posts/cncf-unveils-schedule-for-kubecon-cloudnativecon-europe-2026-ikhcoa5cb) · CNCF · 2 upvotes · 0 comments - [CNCF Debuts KubeCon \+ CloudNativeCon Japan 2026 Schedule](https://daily.dev/posts/cncf-debuts-kubecon-cloudnativecon-japan-2026-schedule-xp5pyudub) · CNCF · 1 upvotes · 0 comments --- Tags: [#cyber](https://daily.dev/tags/cyber), [#microsoft](https://daily.dev/tags/microsoft), [#adobe](https://daily.dev/tags/adobe) [View this post on daily.dev](https://daily.dev/posts/microsoft-s-september-update-reveals-critical-zero-days-and-patching-issues-jpdxky7x9) ```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's September Update Reveals Critical Zero-Days and Patching Issues","url":"https://daily.dev/posts/microsoft-s-september-update-reveals-critical-zero-days-and-patching-issues-jpdxky7x9","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/microsoft-s-september-update-reveals-critical-zero-days-and-patching-issues-jpdxky7x9"},"datePublished":"2024-09-10T21:54:43.482Z","dateModified":"2024-09-12T18:40:05.899Z","description":"Microsoft's September 2024 Patch Tuesday addresses 79 security vulnerabilities, including four critical zero-day flaws. 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