Microsoft Windows Privilege Escalation Vulnerability

CVE-2021-43226 High CVSS 7.8 In-The-Wild Exploited Ransomware Known
Beranda Advisories CVE-2021-43226

Ringkasan Kerentanan (Vulnerability Overview)

Rilis: 01 October 2026
Microsoft Windows Common Log File System Driver contains a privilege escalation vulnerability that could allow a local, privileged attacker to bypass certain security mechanisms.

Tindakan Mitigasi yang Wajib Diterapkan (Required Action)

Instruksi Keamanan untuk Pengelola TI / OPD
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Seluruh pengelola server dan aplikasi di lingkungan OPD Kabupaten Ciamis diimbau untuk segera mengaudit perangkat terdampak dan mengaplikasikan patch sebelum batas waktu mitigasi.

Produk & Versi Terdampak

Produk Versi Basis Batas Terdampak Status Keamanan
Windows 10 Version 1809 10.0.0 10.0.17763.2366 AFFECTED
Windows Server 2019 10.0.0 10.0.17763.2366 AFFECTED
Windows Server 2019 (Server Core installation) 10.0.0 10.0.17763.2366 AFFECTED
Windows 10 Version 1909 10.0.0 10.0.18363.1977 AFFECTED
Windows 10 Version 21H1 10.0.0 10.0.19043.1415 AFFECTED
Windows Server 2022 10.0.0 10.0.20348.405 AFFECTED
Windows 10 Version 2004 10.0.0 10.0.19041.1415 AFFECTED
Windows Server version 2004 10.0.0 10.0.19041.1415 AFFECTED
Windows 10 Version 20H2 10.0.0 10.0.19042.1415 AFFECTED
Windows Server version 20H2 10.0.0 10.0.19042.1415 AFFECTED

Threat Intelligence Matrix

CVE Identifier
CVE-2021-43226
Vendor / Project Microsoft
Produk Terdampak Windows
Skor CVSS
7.8 / 10.0
Status Eksploitasi AKTIF (In-The-Wild)
Kampanye Ransomware Teridentifikasi (Known)
Automatable (Wormable) Unknown
Dampak Teknis Total
Sumber Intelijen CISA KEV

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