CVE-2021-21017

Katalog CVE

CVSS 8.8 · High KEV · sudah dieksploitasi EPSS 86,3%

Kerentanan Heap-based Buffer Overflow pada adobe acrobat, adobe acrobat dc +2 lainnya. Skor CVSS 3.1 8.8 (High) menurut adobe.com. Masuk katalog KEV CISA pada 3 November 2021, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a heap-based buffer overflow vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Rincian

Terbit di NVD

11 Februari 2021

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

8.8 (High), sumber adobe.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-122: Heap-based Buffer Overflow
CWE-787: Out-of-bounds Write

EPSS (30 hari)

86,3% peluang dieksploitasi; lebih tinggi dari 99,7% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Adobe Acrobat and Reader Heap-based Buffer Overflow Vulnerability

Masuk KEV

3 November 2021

Tenggat CISA

17 November 2021 (untuk instansi federal AS)

Ransomware

Belum tercatat

Tindakan wajib

Apply updates per vendor instructions.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://helpx.adobe.com/security/products/acrobat/apsb21-09.html advisory vendor
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21017 advisory pihak ketiga · pemerintah AS