Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability

CVE-2018-8639 Unknown In-The-Wild Exploited Ransomware Known
Beranda Advisories CVE-2018-8639

Ringkasan Kerentanan (Vulnerability Overview)

Rilis: 01 October 2026
Microsoft Windows Win32k contains an improper resource shutdown or release vulnerability that allows for local, authenticated privilege escalation. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode.

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 7 32-bit Systems Service Pack 1 — AFFECTED
Windows 7 x64-based Systems Service Pack 1 — AFFECTED
Windows Server 2012 R2 (Server Core installation) — AFFECTED
Windows RT 8.1 Windows RT 8.1 — AFFECTED
Windows Server 2008 32-bit Systems Service Pack 2 — AFFECTED
Windows Server 2008 32-bit Systems Service Pack 2 (Server Core installation) — AFFECTED
Windows Server 2008 Itanium-Based Systems Service Pack 2 — AFFECTED
Windows Server 2008 x64-based Systems Service Pack 2 — AFFECTED
Windows Server 2008 x64-based Systems Service Pack 2 (Server Core installation) — AFFECTED
Windows Server 2019 (Server Core installation) — AFFECTED

Threat Intelligence Matrix

CVE Identifier
CVE-2018-8639
Vendor / Project Microsoft
Produk Terdampak Windows
Skor CVSS
N/A / 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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