CVE-2021-1612: cisco sd-wan

csirt@kutim:~/threat-intel/cve/CVE-2021-1612

CVSS 7.1 · High EPSS 0,25%

Kerentanan UNIX Symbolic Link (Symlink) Following pada cisco sd-wan. Skor CVSS 3.1 7.1 (High) menurut NVD.

Deskripsi (NVD)

A vulnerability in the Cisco IOS XE SD-WAN Software CLI could allow an authenticated, local attacker to overwrite arbitrary files on the local system. This vulnerability is due to improper access controls on files within the local file system. An attacker could exploit this vulnerability by placing a symbolic link in a specific location on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on an affected device.

Rincian

Terbit di NVD: 23 September 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 7.1 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-61: UNIX Symbolic Link (Symlink) Following
CWE-59: Improper Link Resolution Before File Access ('Link Following')
EPSS (30 hari): 0,25% peluang dieksploitasi; lebih tinggi dari 15,1% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
cisco	sd-wan	Semua versi sebelum 17.3.4

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-GjR5pGOm patch · advisory vendor

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.