{"id":5200,"date":"2026-08-12T05:33:02","date_gmt":"2026-08-12T05:33:02","guid":{"rendered":"https:\/\/windowsreport.com\/de\/microsoft-behebt-rund-400-sicherheitslucken-am-patch-tuesday-im-august-2026\/"},"modified":"2026-08-12T05:33:02","modified_gmt":"2026-08-12T05:33:02","slug":"microsoft-behebt-rund-400-sicherheitslucken-am-patch-tuesday-im-august-2026","status":"publish","type":"post","link":"https:\/\/windowsreport.com\/de\/microsoft-behebt-rund-400-sicherheitslucken-am-patch-tuesday-im-august-2026\/","title":{"rendered":"Microsoft behebt rund 400 Sicherheitsl\u00fccken am Patch Tuesday im August 2026"},"content":{"rendered":"\n<p>Microsofts August 2026 Patch Tuesday behebt rund 400 Sicherheitsl\u00fccken, darunter 42 als kritisch eingestufte Schwachstellen und drei Zero-Day-L\u00fccken, die Windows betreffen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-microsoft-fixes-around-400-vulnerabilities\">Microsoft behebt rund 400 Sicherheitsl\u00fccken<\/h2>\n\n\n\n<p>Von den rund 400 in diesem Monat behobenen Sicherheitsl\u00fccken tragen 42 die Bewertung \u201eKritisch\u201c.<\/p>\n\n\n\n<p>Microsoft hat 37 dieser kritischen Schwachstellen als Remotecodeausf\u00fchrung-Sicherheitsl\u00fccken eingestuft, f\u00fcnf betreffen eine Rechteerweiterung.<\/p>\n\n\n\n<p>Das Unternehmen hat au\u00dferdem drei Zero-Day-L\u00fccken gepatcht. Eine davon wurde bereits aktiv in freier Wildbahn ausgenutzt.<\/p>\n\n\n\n<p>Microsoft hatte zuvor gewarnt, dass der zunehmende Einsatz KI-gest\u00fctzter Sicherheitstools dazu f\u00fchren k\u00f6nnte, dass mehr Sicherheitsl\u00fccken in Windows entdeckt und gepatcht werden.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-august-patch-tuesday-vulnerability-breakdown\">Aufschl\u00fcsselung der Sicherheitsl\u00fccken des August Patch Tuesday<\/h3>\n\n\n\n<p>Microsoft hat Sicherheitsl\u00fccken in mehreren Kategorien behoben:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>176 Sicherheitsl\u00fccken zur Rechteerweiterung<\/li>\n\n\n\n<li>110 Remotecodeausf\u00fchrung-Sicherheitsl\u00fccken<\/li>\n\n\n\n<li>86 Sicherheitsl\u00fccken zur Offenlegung von Informationen<\/li>\n\n\n\n<li>21 Spoofing-Sicherheitsl\u00fccken<\/li>\n\n\n\n<li>12 Denial-of-Service-Sicherheitsl\u00fccken<\/li>\n\n\n\n<li>11 Sicherheitsl\u00fccken zur Umgehung von Sicherheitsfunktionen<\/li>\n<\/ul>\n\n\n\n<p>Diese Zahlen umfassen Sicherheitsl\u00fccken, die Microsoft im Rahmen des August 2026 Patch Tuesday behoben hat. Einige bereits fr\u00fcher im Monat f\u00fcr andere Microsoft-Produkte gepatchte Sicherheitsl\u00fccken sind nicht enthalten.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-actively-exploited-windows-zero-day-patched\">Aktiv ausgenutzte Windows-Zero-Day-L\u00fccke gepatcht<\/h3>\n\n\n\n<p>Einer der wichtigsten Fixes betrifft CVE-2026-68820, eine Sicherheitsl\u00fccke im Windows-Zusatzfunktionstreiber f\u00fcr WinSock.<\/p>\n\n\n\n<p>Die Use-after-Free-Schwachstelle erm\u00f6glicht es einem lokal authentifizierten Angreifer, seine Rechte auf SYSTEM zu erweitern.<\/p>\n\n\n\n<p>Ein Angreifer muss eine speziell gestaltete Anwendung ausf\u00fchren, die eine Wettlaufsituation ausl\u00f6st; Benutzerinteraktion ist f\u00fcr den Angriff jedoch nicht erforderlich.<\/p>\n\n\n\n<p>Microsoft hat keine weiteren Details dazu bekannt gegeben, wie Angreifer CVE-2026-68820 in realen Angriffen ausgenutzt haben.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-windows-user-profile-service-zero-day-fixed\">Zero-Day-L\u00fccke im Windows-Benutzerprofildienst behoben<\/h3>\n\n\n\n<p>Microsoft hat auch CVE-2026-62832 gepatcht, eine \u00f6ffentlich bekannt gegebene Sicherheitsl\u00fccke zur Rechteerweiterung im Windows-Benutzerprofildienst.<\/p>\n\n\n\n<p>Die Sicherheitsl\u00fccke scheint mit der zuvor bekannt gewordenen LegacyHive-Windows-Zero-Day \u00fcbereinzustimmen.<\/p>\n\n\n\n<p>Ein authentifizierter Angreifer, der \u00fcber Anmeldeinformationen f\u00fcr ein anderes lokales Konto verf\u00fcgt, k\u00f6nnte die Registrierungsstruktur dieses Benutzers laden.<\/p>\n\n\n\n<p>Eine erfolgreiche Ausnutzung k\u00f6nnte es dem Angreifer erm\u00f6glichen, auf die Daten eines anderen Benutzers zuzugreifen oder diese zu \u00e4ndern und potenziell Administratorrechte zu erlangen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-windows-container-isolation-flaw-also-patched\">Schwachstelle in der Windows-Container-Isolation ebenfalls gepatcht<\/h3>\n\n\n\n<p>Die dritte Zero-Day-L\u00fccke, CVE-2026-72971, betrifft den FS-Filtertreiber f\u00fcr Windows-Container-Isolation, unionfs.sys.<\/p>\n\n\n\n<p>Microsoft beschreibt das Problem als eine \u00f6ffentlich bekannt gewordene Manipulationssicherheitsl\u00fccke, die durch eine fehlerhafte Link-Aufl\u00f6sung verursacht wird.<\/p>\n\n\n\n<p>Ein lokal authentifizierter Angreifer kann die Sicherheitsl\u00fccke ausnutzen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-new-windows-11-and-windows-10-updates-are-available\">Neue Updates f\u00fcr Windows 11 und Windows 10 verf\u00fcgbar<\/h3>\n\n\n\n<p>Microsoft hat zusammen mit den Sicherheitskorrekturen neue kumulative Windows-Updates ver\u00f6ffentlicht.<\/p>\n\n\n\n<p>Windows-11-Benutzer erhielten die <a href=\"https:\/\/windowsreport.com\/de\/windows-11-kb5121003-kb5121000-kb5120240-patchday-updates-fur-august-2026-veroffentlicht\/\" target=\"_blank\" rel=\"noopener noreferrer\">KB5121003- und KB5120240-kumulativen Updates f\u00fcr August 2026<\/a>.<\/p>\n\n\n\n<p>Windows-10-Benutzer, die durch Erweiterte Sicherheitsupdates abgedeckt sind, erhielten das KB5120249-Update f\u00fcr August 2026.<\/p>\n\n\n\n<p>Via <a href=\"https:\/\/www.bleepingcomputer.com\/news\/microsoft\/microsoft-august-2026-patch-tuesday-fixes-400-flaws-3-zero-days\/\" target=\"_blank\" rel=\"noopener noreferrer\">BleepingComputer<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsofts August 2026 Patch Tuesday behebt rund 400 Sicherheitsl\u00fccken, darunter 42 als kritisch eingestufte Schwachstellen und drei Zero-Day-L\u00fccken, die Windows betreffen. Microsoft behebt rund 400 Sicherheitsl\u00fccken Von den rund 400 in diesem Monat behobenen Sicherheitsl\u00fccken tragen 42 die Bewertung \u201eKritisch\u201c. Microsoft hat 37 dieser kritischen Schwachstellen als Remotecodeausf\u00fchrung-Sicherheitsl\u00fccken eingestuft, f\u00fcnf betreffen eine Rechteerweiterung. Das Unternehmen [&hellip;]<\/p>\n","protected":false},"author":49,"featured_media":5201,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_enabled_clarity":"","footnotes":""},"categories":[1797],"tags":[],"work":[],"class_list":["post-5200","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-anleitung"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Microsoft behebt rund 400 Sicherheitsl\u00fccken am Patch Tuesday im August 2026<\/title>\n<meta name=\"description\" content=\"Microsofts August-2026-Patchday behebt rund 400 Sicherheitsl\u00fccken, darunter 42 kritische Schwachstellen und drei Windows-Zero-Day-Schwachstellen.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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