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7.8Hoch KEV In Ransomware genutzt

CVE-2021-43226Windows Common Log File System Driver Elevation of Privilege Vulnerability

Microsoft Windows 10 Version 1809; Microsoft Windows Server 2019; Microsoft Windows Server 2019 (Server Core installation); Microsoft Windows 10 Version 1909 Veröffentlicht: (vor 4 Jahren)

Bekannt ausgenutzt — Microsoft Windows Privilege Escalation Vulnerability

CISA hat am 06.10.2025 bestätigt, dass diese Schwachstelle in echten Angriffen genutzt wird. Frist für US-Bundesbehörden: 27.10.2025.

Erforderliche Maßnahme: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-43226 ; https://nvd.nist.gov/vuln/detail/CVE-2021-43226

Beschreibung

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

HerstellerProduktVersionen
microsoft windows 10 1507 10.0.10240.19145
microsoft windows 10 1607 10.0.14393.4825
microsoft windows 10 1809 10.0.17763.2366
microsoft windows 10 1909 10.0.18363.1977
microsoft windows 10 2004 < 10.0.19041.1415
microsoft windows 10 20H2 10.0.19042.1415
microsoft windows 10 21H1 10.0.19043.1415
microsoft windows 10 21H2 10.0.19044.1415
Microsoft Windows 10 Version 1507 10.0.0 – < 10.0.10240.19145
Microsoft Windows 10 Version 1607 10.0.0 – < 10.0.14393.4825
Microsoft Windows 10 Version 1809 10.0.0 – < 10.0.17763.2366
Microsoft Windows 10 Version 1909 10.0.0 – < 10.0.18363.1977
Microsoft Windows 10 Version 2004 10.0.0 – < 10.0.19041.1415
Microsoft Windows 10 Version 20H2 10.0.0 – < 10.0.19042.1415
Microsoft Windows 10 Version 21H1 10.0.0 – < 10.0.19043.1415
Microsoft Windows 10 Version 21H2 10.0.0 – < 10.0.19044.1415
microsoft windows 11 21H2 10.0.22000.376
Microsoft Windows 11 version 21H2 10.0.0 – < 10.0.22000.376
Microsoft Windows 7 6.1.0 – < 6.1.7601.25796
Microsoft Windows 7 Service Pack 1 6.1.0 – < 6.1.7601.25796
Microsoft Windows 8.1 6.3.0 – < 6.3.9600.20207
microsoft windows rt 8.1 6.3.9600.20207
microsoft windows server 2004 10.0.19041.1415
microsoft windows server 2008 r2
microsoft windows server 2008 R2 6.1.7601.25796
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.0 – < 6.1.7601.25796
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.0.0 – < 6.1.7601.25796
Microsoft Windows Server 2008 Service Pack 2 6.0.0 – < 6.0.6003.21309
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.0 – < 6.0.6003.21309
microsoft windows server 2008 sp2 6.0.6003.21309
Microsoft Windows Server 2012 6.2.0 – < 6.2.9200.23545, 6.2.0 – < 6.2.9200.23540
Microsoft Windows Server 2012 R2 6.3.0 – < 6.3.9600.20207
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.0 – < 6.3.9600.20207
Microsoft Windows Server 2012 (Server Core installation) 6.2.0 – < 6.2.9200.23545, 6.2.0 – < 6.2.9200.23540
Microsoft Windows Server 2016 10.0.0 – < 10.0.14393.4825
Microsoft Windows Server 2016 (Server Core installation) 10.0.0 – < 10.0.14393.4825
Microsoft Windows Server 2019 10.0.0 – < 10.0.17763.2366
Microsoft Windows Server 2019 (Server Core installation) 10.0.0 – < 10.0.17763.2366
Microsoft Windows Server 2022 10.0.0 – < 10.0.20348.405
microsoft windows server 20H2 10.0.19042.1415
Microsoft Windows Server version 2004 10.0.0 – < 10.0.19041.1415
Microsoft Windows Server version 20H2 10.0.0 – < 10.0.19042.1415

Referenzen und Patches

CPE-Treffer (NVD) (25)
  • cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:* < 10.0.10240.19145
  • cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:* < 10.0.10240.19145
  • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* < 10.0.14393.4825
  • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* < 10.0.14393.4825
  • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:* < 10.0.17763.2366
  • cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:* < 10.0.18363.1977
  • cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:* < 10.0.19041.1415
  • cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:arm64:* < 10.0.19042.1415
  • cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:x86:* < 10.0.19042.1415
  • cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:* < 10.0.19043.1415
  • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:* < 10.0.19044.1415
  • cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:* < 10.0.22000.376
  • cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:* < 10.0.19041.1415
  • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*
  • cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* < 10.0.14393.4825
  • cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* < 10.0.17763.2366
  • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* < 10.0.20348.405
  • cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:* < 10.0.19042.1415

Neue CVEs im selben Produkt — Windows 10

7.0Hoch
CVE-2026-108135

Windows Backup Engine Elevation of Privilege Vulnerability

Microsoft Windows 10 Version 21H2; Microsoft Windows 10 Version 22H2; Microsoft Windows 11 version 23H2; Microsoft Windows 11 Version 23H2

Improper link resolution before file access ('link following') in Windows Backup Engine allows an authorized attacker to elevate privileges locally.

6.5Mittel
CVE-2026-108129

Role: DNS Server Information Disclosure Vulnerability

Microsoft Windows 10 Version 1607; Microsoft Windows 10 Version 1809; Microsoft Windows 10 Version 21H2; Microsoft Windows 10 Version 22H2

Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

1.1%EPSS