CVE-2020-36178: tp-link tl-wr840n firmware

csirt@kutim:~/threat-intel/cve/CVE-2020-36178

CVSS 9.8 · Critical EPSS 9,8%

Kerentanan Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') pada tp-link tl-wr840n firmware. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

oal_ipt_addBridgeIsolationRules on TP-Link TL-WR840N 6_EU_0.9.1_4.16 devices allows OS command injection because a raw string entered from the web interface (an IP address field) is used directly for a call to the system library function (for iptables). NOTE: oal_ipt_addBridgeIsolationRules is not the only function that calls util_execSystem.

Rincian

Terbit di NVD: 6 Januari 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
EPSS (30 hari): 9,8% peluang dieksploitasi; lebih tinggi dari 95,4% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
tp-link	tl-wr840n firmware	Versi 6_eu_0.9.1_4.16

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://www.tp-link.com/fr/support/download/tl-wr840n/v6/#Firmware advisory vendor
https://github.com/therealunicornsecurity/therealunicornsecurity.github.io/blob/master/_posts/2020-10-11-TPLin... exploit · advisory pihak ketiga
https://therealunicornsecurity.github.io/TPLink/ 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.