CVE-2021-21791: iobit advanced systemcare ultimate

csirt@kutim:~/threat-intel/cve/CVE-2021-21791

CVSS 5.5 · Medium EPSS 0,34%

Kerentanan Exposed IOCTL with Insufficient Access Control pada iobit advanced systemcare ultimate. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

An information disclosure vulnerability exists in the the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O read requests. A specially crafted I/O request packet (IRP) can lead to privileged reads in the context of a driver which can result in sensitive information disclosure from the kernel. The IN instruction can read two bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.

Rincian

Terbit di NVD: 5 Agustus 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-782: Exposed IOCTL with Insufficient Access Control
EPSS (30 hari): 0,34% peluang dieksploitasi; lebih tinggi dari 25,2% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
iobit	advanced systemcare ultimate	Versi 14.2.0.220

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1255 exploit · advisory pihak ketiga

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.