--- title: The Vulnerability of AMD Zen-based Platforms: ZenHammer... description: A vulnerability called ZenHammer exploits DDR4 and DDR5 devices on AMD Zen CPUs, bypassing existing mitigations like Target Row Refresh. Intel Coffee Lake is... canonical: https://daily.dev/posts/the-vulnerability-of-amd-zen-based-platforms-zenhammer-exploits-rowhammer-attacks-sqol8besx twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: The Vulnerability of AMD Zen-based Platforms: ZenHammer Exploits Rowhammer Attacks | daily.dev og:description: A vulnerability called ZenHammer exploits DDR4 and DDR5 devices on AMD Zen CPUs, bypassing existing mitigations like Target Row Refresh. Intel Coffee Lake is... og:url: https://daily.dev/posts/the-vulnerability-of-amd-zen-based-platforms-zenhammer-exploits-rowhammer-attacks-sqol8besx og:image: https://api.daily.dev/og/posts/Sqol8BeSX.png og:image:alt: The Vulnerability of AMD Zen-based Platforms: ZenHammer Exploits Rowhammer Attacks 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. # The Vulnerability of AMD Zen-based Platforms: ZenHammer Exploits Rowhammer Attacks **[Collections](https://daily.dev/sources/collections)** · 1 min read · 1 upvotes · 0 comments ## Summary A vulnerability called ZenHammer exploits DDR4 and DDR5 devices on AMD Zen CPUs, bypassing existing mitigations like Target Row Refresh. Intel Coffee Lake is compared to ZenHammer. AMD is taking steps to address this security issue. ## Content A recent research study has identified a concerning vulnerability affecting AMD Zen-based platforms. Known as ZenHammer, this attack leverages the Rowhammer technique to exploit DDR4 and DDR5 devices on AMD Zen CPUs. The findings of the study highlight the comparison between the results obtained from Intel Coffee Lake and offer valuable insights into addressing this issue. One of the key aspects of ZenHammer is its ability to bypass existing mitigations such as Target Row Refresh (TRR), making it a particularly potent threat. Moreover, it is noteworthy that ZenHammer is the first variant of the RowHammer DRAM attack to trigger bit flips on DDR5 devices. The discovery of ZenHammer has prompted a response from AMD, which has already initiated plans to tackle this vulnerability. This development emphasizes the importance of regular security updates and the proactive efforts required to safeguard AMD Zen-based platforms against emerging threats like ZenHammer. ## 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: [#security](https://daily.dev/tags/security), [#amd](https://daily.dev/tags/amd) [View this post on daily.dev](https://daily.dev/posts/the-vulnerability-of-amd-zen-based-platforms-zenhammer-exploits-rowhammer-attacks-sqol8besx) ```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":"The Vulnerability of AMD Zen-based Platforms: ZenHammer Exploits Rowhammer Attacks","url":"https://daily.dev/posts/the-vulnerability-of-amd-zen-based-platforms-zenhammer-exploits-rowhammer-attacks-sqol8besx","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/the-vulnerability-of-amd-zen-based-platforms-zenhammer-exploits-rowhammer-attacks-sqol8besx"},"datePublished":"2024-03-27T15:22:07.972Z","dateModified":"2024-03-28T12:01:10.369Z","description":"A vulnerability called ZenHammer exploits DDR4 and DDR5 devices on AMD Zen CPUs, bypassing existing mitigations like Target Row Refresh. 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