{"id":2029,"date":"2025-07-11T10:56:04","date_gmt":"2025-07-11T08:56:04","guid":{"rendered":"https:\/\/bergs.biz\/blog\/?p=2029"},"modified":"2025-07-11T10:57:55","modified_gmt":"2025-07-11T08:57:55","slug":"msi-b550m-pro-vdh-wifi-why-do-msi-not-fix-serious-amd-tpm-firmware-bug","status":"publish","type":"post","link":"https:\/\/bergs.biz\/blog\/2025\/07\/11\/msi-b550m-pro-vdh-wifi-why-do-msi-not-fix-serious-amd-tpm-firmware-bug\/","title":{"rendered":"MSI B550M PRO-VDH WIFI: Why do MSI not fix serious AMD TPM Firmware Bug?"},"content":{"rendered":"\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/www.amd.com\/en\/resources\/support-articles\/faqs\/pa-420.html\" target=\"_blank\">According to AMD<\/a>, there is a serious bug in TPM firmware with regards to <a rel=\"noreferrer noopener\" href=\"https:\/\/learn.microsoft.com\/en-us\/windows-server\/identity\/ad-ds\/manage\/component-updates\/tpm-key-attestation\" target=\"_blank\">attestation<\/a>.<\/p>\n\n\n\n<p>(In case you wonder, TPM attestation means that a party using a secret key can prove the secret key is handled securely by means of a hardware module, so it cannot be misused or accidentally exposed.)<\/p>\n\n\n\n<p>AMD made a fix available already more than 2 years ago, according to said article.<\/p>\n\n\n\n<p>I was curious and wanted to find out if MSI provided this fix to their customers already, so I executed the below PowerShell command (as an admin) on my PC that is equipped with a B550M PRO-VDH WIFI motherboard, running the latest UEFI version 7C95v2M (released 2025-04-17) as of today (2025-07-11):<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>PS C:\\WINDOWS\\system32> Get-TPM\n\n\nTpmPresent                : True\nTpmReady                  : True\nTpmEnabled                : True\nTpmActivated              : True\nTpmOwned                  : True\nRestartPending            : True\nManufacturerId            : 1095582720\nPpiVersion                : 1.3\nManufacturerIdTxt         : AMD\nManufacturerVersion       : 3.92.0.5\nManufacturerVersionFull20 : 3.92.0.5\nManagedAuthLevel          : Full\nOwnerAuth                 :\nOwnerClearDisabled        : False\nAutoProvisioning          : Enabled\nLockedOut                 : False\nLockoutHealTime           : 2 hours\nLockoutCount              : 0\nLockoutMax                : 32\nSelfTest                  : {}<\/code><\/pre>\n\n\n\n<p>As you can see, my board has a firmware version of <code>3.92.0.5<\/code> installed, which matches <code>3.*.0.*<\/code> as vulnerable, while <code>3.*.2.*<\/code> would have contained the fix.<\/p>\n\n\n\n<p>This is very disappointing. I chose MSI and paid a premium price because I trusted MSI. It seems that when my other PC no longer receives Windows 10 updates in October, I need to choose a different supplier than MSI to build a new PC. \ud83d\ude1e<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MSI fail to deliver firmware update even though AMD made it available to them more than 2 years ago.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,122],"tags":[404,405,31,406,372],"class_list":["post-2029","post","type-post","status-publish","format-standard","hentry","category-computers","category-english","tag-motherboards","tag-msi","tag-security","tag-tpm","tag-uefi"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>MSI B550M PRO-VDH WIFI: Why do MSI not fix serious AMD TPM Firmware Bug? - Ralf&#039;s Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bergs.biz\/blog\/2025\/07\/11\/msi-b550m-pro-vdh-wifi-why-do-msi-not-fix-serious-amd-tpm-firmware-bug\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MSI B550M PRO-VDH WIFI: Why do MSI not fix serious AMD TPM Firmware Bug? 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