CVE-2018-8639

Katalog CVE

CVSS 7.8 · High KEV · sudah dieksploitasi Dipakai ransomware EPSS 22,2%

Kerentanan Improper Resource Shutdown or Release pada microsoft windows 10 1507, microsoft windows 10 1607 +11 lainnya. Skor CVSS 3.1 7.8 (High) menurut NVD. Masuk katalog KEV CISA pada 3 Maret 2025, artinya sudah terbukti dieksploitasi. Tercatat dipakai dalam kampanye ransomware.

Deskripsi (NVD)

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8641.

Rincian

Terbit di NVD

12 Desember 2018

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-404: Improper Resource Shutdown or Release

EPSS (30 hari)

22,2% peluang dieksploitasi; lebih tinggi dari 97,6% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability

Masuk KEV

3 Maret 2025

Tenggat CISA

24 Maret 2025 (untuk instansi federal AS)

Ransomware

Tercatat dipakai dalam kampanye ransomware

Tindakan wajib

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8639 patch · advisory vendor
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8639 pemerintah AS
• http://www.securityfocus.com/bid/106093 broken link · advisory pihak ketiga · vdb entry