CVE-2026-81963

Katalog CVE

CVSS 7.8 · High KEV · sudah dieksploitasi EPSS 0,39%

Kerentanan Improper Link Resolution Before File Access ('Link Following') pada microsoft windows 11 23h2, microsoft windows 11 24h2 +3 lainnya. Skor CVSS 3.1 7.8 (High) menurut microsoft.com. Masuk katalog KEV CISA pada 8 September 2026, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

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

Advisory KUTIM-CSIRT

• Peringatan Keamanan: 2 Kerentanan Privilege Escalation Windows Sudah Dieksploitasi 9 Sep 2026

Rincian

Terbit di NVD

8 September 2026

Terakhir diubah

9 September 2026

Status NVD

Analyzed

CVSS 3.1

7.8 (High), sumber microsoft.com
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-59: Improper Link Resolution Before File Access ('Link Following')
CWE-284: Improper Access Control

EPSS (30 hari)

0,39% peluang dieksploitasi; lebih tinggi dari 31,6% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Microsoft Windows Link Following Vulnerability

Masuk KEV

8 September 2026

Tenggat CISA

22 September 2026 (untuk instansi federal AS)

Ransomware

Belum tercatat

Tindakan wajib

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81963 patch · advisory vendor
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-81963 pemerintah AS