CVE-2021-20023

Katalog CVE

CVSS 4.9 · Medium KEV · sudah dieksploitasi Dipakai ransomware EPSS 51,7%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada sonicwall email security, sonicwall email security appliance 9000 firmware +9 lainnya. Skor CVSS 3.1 4.9 (Medium) menurut NVD. Masuk katalog KEV CISA pada 3 November 2021, artinya sudah terbukti dieksploitasi. Tercatat dipakai dalam kampanye ransomware.

Deskripsi (NVD)

SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to read an arbitrary file on the remote host.

Rincian

Terbit di NVD

20 April 2021

Terakhir diubah

1 Oktober 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

51,7% peluang dieksploitasi; lebih tinggi dari 98,9% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

SonicWall Email Security Path Traversal Vulnerability

Masuk KEV

3 November 2021

Tenggat CISA

17 November 2021 (untuk instansi federal AS)

Ransomware

Tercatat dipakai dalam kampanye ransomware

Tindakan wajib

Apply updates per vendor instructions.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0010 advisory vendor
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20023 pemerintah AS