{"id":39518,"date":"2025-10-03T13:06:34","date_gmt":"2025-10-03T11:06:34","guid":{"rendered":"http:\/\/159.69.82.204\/win\/?p=39518"},"modified":"2025-10-03T13:06:34","modified_gmt":"2025-10-03T11:06:34","slug":"microsoft-defender-bug-reports-incorrect-bios-update-notifications","status":"publish","type":"post","link":"https:\/\/borncity.com\/win\/2025\/10\/03\/microsoft-defender-bug-reports-incorrect-bios-update-notifications\/","title":{"rendered":"Microsoft Defender bug reports incorrect BIOS update notifications"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" style=\"margin: 0px 10px 0px 0px; display: inline; float: left;\" src=\"https:\/\/www.borncity.com\/blog\/wp-content\/uploads\/2012\/07\/Ultrabook.jpg\" width=\"80\" height=\"62\" align=\"left\" \/>[<a href=\"https:\/\/www.borncity.com\/blog\/2025\/10\/03\/microsoft-defender-bug-meldet-fehlerhafte-bios-update-benachrichtigungen\/\" target=\"_blank\" rel=\"noopener\">German<\/a>]Owners of Dell devices running Windows may currently be surprised by Defender false positives reporting a \"BIOS update.\"<\/p>\n<p><!--more--><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/vg07.met.vgwort.de\/na\/cf94ad7ed5d94f33b183306f20a588e2\" alt=\"\" width=\"1\" height=\"1\" \/>This appears to affect Dell devices running Microsoft Defender for Endpoint on Windows and suddenly occurred on October 2, 2025. Microsoft has published a notice DZ1163521 (requires login with an authorized user account; a copy can be found <a href=\"https:\/\/support.nhs.net\/2025\/10\/microsoft-365-alert-service-degradation-microsoft-defender-xdr-some-users-receive-false-microsoft-defender-for-endpoint-alerts-for-devices-basic-input-output-system-bios-versions\/\" target=\"_blank\" rel=\"noopener\">here<\/a>, and a summary can be found <a href=\"https:\/\/exchange.xforce.ibmcloud.com\/osint\/guid:33d343579cc744849e44cec997270586\" target=\"_blank\" rel=\"noopener\">here<\/a>).<\/p>\n<p><a href=\"https:\/\/www.bleepingcomputer.com\/news\/microsoft\/microsoft-defender-bug-triggers-erroneous-bios-update-alerts\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i.postimg.cc\/nrpfqqXv\/image.png\" alt=\"Defender false BIOS Update alarm\" width=\"538\" height=\"452\" \/><\/a><\/p>\n<p>Bleeping Computer was apparently the first to see the Microsoft announcement and picked up on it <a href=\"https:\/\/www.bleepingcomputer.com\/news\/microsoft\/microsoft-defender-bug-triggers-erroneous-bios-update-alerts\/\" target=\"_blank\" rel=\"noopener\">here<\/a>. Microsoft writes that some users received false Microsoft Defender for Endpoint warnings (probably along the lines of \"Update your BIOS immediately!\"). The warning criticized incorrect BIOS (Basic Input\/Output System) versions on the devices, even though the BIOS was up to date.<\/p>\n<p>On October 2, 2025, Microsoft wrote that it had discovered that a code error in the Microsoft Defender for Endpoint logic that retrieves vulnerabilities for Dell devices was causing this issue. A fix has already been developed to resolve the bug. This fix is to be included in the next Defender update. Were any of our readers affected?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[German]Owners of Dell devices running Windows may currently be surprised by Defender false positives reporting a \"BIOS update.\"<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[463,580,1547,2],"tags":[773,176,47,194],"class_list":["post-39518","post","type-post","status-publish","format-standard","hentry","category-issue","category-security","category-software","category-windows","tag-defender","tag-dell","tag-issue","tag-windows"],"_links":{"self":[{"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/posts\/39518","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/comments?post=39518"}],"version-history":[{"count":1,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/posts\/39518\/revisions"}],"predecessor-version":[{"id":39519,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/posts\/39518\/revisions\/39519"}],"wp:attachment":[{"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/media?parent=39518"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/categories?post=39518"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/tags?post=39518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}